Awesome Site Reliability Engineering

A curated list of awesome Site Reliability and Production Engineering resources.

What is Site Reliability Engineering?

"Fundamentally, it's what happens when you ask a software engineer to design an operations function." - Ben Treynor Sloss, VP Google Engineering, founder of Google SRE

Contributing

Please take a look at the contribution guidelines first. Contributions are always welcome!

Contents

• Culture
• Education
• Books
• Hiring
• Reliability
• Monitoring & Observability & Alerting
• On-Call
• Post-Mortem
• Capacity Planning
• Service Level Agreement
• Performance
• Programming
• Misc Articles
• Real-time Messaging
• Blogs
• Newsletters
• Conferences & Meetups
• Twitter
• SRE Tools
• SRE Podcasts

Culture

• What is Site Reliability Engineering?
• Keys To SRE by Ben Treynor
• Google SRE Resources
• Notes from Production Engineering by Pedro Canahuati
• PostOps: Recovery from Operations
• Love DevOps? Wait 'till you meet SRE [video]
• How Google Does Planet-Scale Engineering for Planet-Scale Infra
• Site Reliability Engineering at Facebook
• A History of Site Reliability Engineering at Uber
• Case Study: Adopting SRE Principles at StackOverflow
• Site Reliability Engineering at Dropbox
• Site Reliability Engineers — Keeping Google up and running 24/7
• Site Reliability Engineering at Salesforce
• From Sys Admin to Netflix SRE - video and slides
• SRE@Google: Thousands of DevOps Since 2004
• Transactional System Administration Is Killing Us and Must be Stopped
• A hierarchy of SRE needs
• PostOps: A Non-Surgical Tale of Software, Fragility, and Reliability
• SRE: An incomplete guide to cultural Narnia - [Video]
• Putting Together Great SRE Teams
• Work at Google: Meet our Production Engineers for Site Reliability Hangout on Air
• Toil: A Word Every Engineer Should Know
• Engineering Reliability into Web Sites: Google SRE
• DEVOPS & SRE AMA - Building High Performance Organizations
• John Allspaw's AMA on Incident Analysis and Postmortems
• Site Reliability Engineering with Paul Newson - Part 1 & Part 2
• How SysAdmins Devalue Themselves
• The Softer Side of DevOps
• SRE, noun. See also: confidence, trust.
• Site Reliability Engineering with Stephen Weinberg
• We are the Google Site Reliability team. We make Google’s websites work. Ask us Anything!
• We are the Google Site Reliability Engineering team. Ask us Anything!
• The Ops Identity Crisis
• The Irreproducibility Of Bugs In Large-Scale Production Systems
• SE-Radio Episode 276: Björn Rabenstein on Site Reliability Engineering
• Microservices, DevOps and Production Complexity
• Introducing Google Customer Reliability Engineering
• Evolution or Rebellion? The rise of Site Reliability Engineers (SRE)
• The difference between Site Reliability Engineering, System Administration, and DevOps
• SRE in the Small and in the Large
• SBSRE Meetup: Different SRE roles and challenges(Netflix)
• Panel: Who/What Is SRE?
• Hope Is Not a Strategy
• Tenets of SRE
• Site Reliability Engineering Demystified
• Is Site Reliability Engineering the True ‘Ops’ in DevOps?
• SRE vs. DevOps vs. Cloud Native: The Server Cage Match
• SRE: What’s The Big Idea?
• Building the SRE Culture at LinkedIn
• Podcast #111 – SRE: Occasionally Maintaining Infrastructure That You Hate
• Splicing SRE DNA Sequences in the Biggest Software Company on the Planet
• Why should your app get SRE support? - CRE life lessons
• How SREs find the landmines in a service - CRE life lessons
• Making the most of an SRE service takeover - CRE life lessons
• The Cloudcast #301: SRE and Infrastructure Operations (Podcast)
• The SRE model
• Onboarding New Site Reliability Engineers
• Building Blocks for Site Reliability At Google
• Beyond Google SRE: What is Site Reliability Engineering like at Medium?
• Intelligent Site Reliability Engineering – A Machine Learning Perspective
• A crash course in LinkedIn's global site operations
• Google’s Site Reliability Engineering with Todd Underwood
• What is Site Reliability Engineering? (VMware)
• A Gentle Introduction to SRE
• Understanding Site Reliability Engineering through Movies and Books
• GOTO 2017 • Site Reliability Engineering at Google • Christof Leng
• The Makeup of Successful Geographically-Distributed SRE Teams - Part1 & Part2
• Tech Leadership in SRE
• The Azure Podcast: Episode 227 - Azure SRE
• The human scalability of "DevOps"
• Podcast: Site Reliability Management with Mike Hiraga
• How a cat inspired system reliability at Knowlarity
• Getting Started with Site Reliability Engineering
• "Practical Applications of the Dickerson Pyramid" by Nat Welch
• LinkedIn’s Kurt Andersen Uncovers Blindspots in SRE Implementations
• Interview with Betsy Beyer, Stephen Thorne of Google
• Less Risk Through Greater Humanity - Dave Rensin
• Getting Started with SRE - Stephen Thorne, Google
• Building Successful SRE in Large Enterprises
• Solving Reliability Fears with Site Reliability Engineering
• SRE vs. DevOps: competing standards or close friends?
• How to Avoid the 5 SRE Implementation Traps that Catch Even the Best Teams
• Reliability Engineering – The Essential Discipline for Complex Systems
• The Modern Site Reliability Workbench on Top of OCI
• SRE in the Third Age
• About SRE and how (not) to apply it
• Transitioning a typical engineering ops team into an SRE powerhouse
• Making a Lion Bulletproof: SRE in Banking
• Identifying and tracking toil using SRE principles
• From Ops to SRE: Evolution of the OpenShift Dedicated Team
• Meeting reliability challenges with SRE principles
• A quick introduction to SRE principles
• The SRE I Aspire to Be
• Taming Operational Load with VMware CRE
• SRE Cultural Values
• Are we there yet? Thoughts on assessing an SRE team’s maturity
• What SREs have to do with project-based services?
• Making operational work more visible
• SRE vs. DevOps: What’s the Difference Between Them?

Education

• Panel: Educating SRE
• From Zero to Hero: Recommended Practices for Training your Ever-Evolving SRE Teams
• New to an SRE team?
• The Systems Engineering Side of Site Reliability Engineering
• Graduating from Bootcamp and interested in becoming a Site Reliability Engineer?
• So you want to be a Site Reliability Engineer?
• Spiraling Ops Debt & the SRE Coding Imperative
• So you want to be an SRE?
• Career Profiles/Site Reliability Engineer
• What is the role of a Site Reliability Engineer?
• Lynda.com: DevOps Foundations: Site Reliability Engineering
• Incident Management Training: Wheel of Misfortune
• Site Un-Reliability Engineering [Video Series]
• The Ultimate Guide to Structuring a 90-Day Onboarding Plan
• SRE fundamentals: SLIs, SLAs and SLOs
• How to Get Into SRE
• Do you have an SRE team yet? How to start and assess your journey
• How SRE teams are organized, and how to get started
• Why SRE Documents Matter
• How to get started with site reliability engineering (SRE)
• Duties of a Site Reliability Engineering Manager
• Designing distributed systems using NALSD flashcards
• Training Site Reliability Engineers: What Your Organization Needs to Create a Learning Program
• SRE Classroom: Distributed PubSub workshop
• School of SRE: Curriculum for onboarding non-traditional hires and new grads

Books

• Practical Linux Infrastructure
• Site Reliability Engineering: How Google Runs Production Systems
• The Site Reliability Workbook: Practical Ways to Implement SRE
• Observability Engineering: Achieving Production Excellence
• The Practice Of Cloud System Administration: Designing and Operating Large Distributed Systems
• Web Operations - Keeping the Data On Time
• The Checklist Manifesto: How to Get Things Right
• Microservices in Production - Standard Principles and Requirements
• Production-Ready Microservices - Building Standardized Systems Across an Engineering Organization
• Systems Performance: Enterprise and the Cloud [Sample chapter titled CPUs
• Monitoring Distributed Systems: Case Studies from Google's SRE Teams
• The Human Side of Postmortems: Managing Stress and Cognitive Biases
• Chaos Engineering: Building Confidence in System Behavior through Experiment
• Post-Incident Reviews: Learning from Failure for Improved Incident Responses
• Antifragile Systems and Teams
• How to Monitoring the SRE Golden Signals (E-Book)
• Incident Management for Operations
• Real-World SRE
• Seeking SRE
• What is SRE?
• Engineering Reliable Mobile Applications: Strategies for Developing Resilient Native Mobile Applications
• Building Secure and Reliable Systems
• Chaos Engineering: Crash test your applications
• 97 Things Every SRE Should Know
• Four Steps to Creating Effective Game Day Tests
• The Linux Programming Interface

Hiring

• SRE Hiring
• Hiring SREs at LinkedIn
• Hiring Site Reliability Engineers
• Hiring your first SRE
• Growing the Site Reliability Team at LinkedIn: Hiring is Hard
• Engineering Manager - Site Reliability Engineering Interview Preparation

Reliability

• The Realities of the Job of Delivering Reliability
• Fail at Scale by Ben Maurer
• Embracing Failure: Fault-Injection and Service Reliability
• 10 Years of Crashing Google
• How we break things at Twitter: failure testing
• Reliable Cron across the Planet
• Push our limits - reliability testing at Twitter
• The Verification of a Distributed System by Caitie McCaffrey
• Weathering the Unexpected
• SRE Hour: Tech Talks by Box & Yelp
• Simplicity: A Prerequisite for Reliability
• The Two Sides to Google Infrastructure for Everyone Else
• How Embracing Continuous Release Reduced Change Complexity
• Making "Push On Green" a Reality
• BeyondCorp: A New Approach to Enterprise Security
• Brainstorming Failure by Jeff Smith
• The Ripple Effect Of Outages And Downtime Cannot Be Underestimated
• The infrastructure behind Twitter: efficiency and optimization
• Dickerson's Hierarchy of Reliability
• The Morning Paper on Operability
• Production is all that matters
• Using load shedding to survive a success disaster - CRE life lessons
• How to avoid a self-inflicted DDoS Attack - CRE life lessons
• Don't gamble when it comes to reliability
• Resilience Engineering: Learning to Embrace Failure
• The Infrastructure Behind Twitter: Scale
• Scaling Reliability at Twitter: So You Want to Add a 9
• Principles Of Chaos Engineering
• Chaos Engineering
• Available...or not? That is the question - CRE life lessons
• How Google Backs Up The Internet Along With Exabytes Of Other Data
• Performance, Scalability, And High Availability: 3 Key Infrastructure Adaptability Requirements
• The Production Environment at Google - Part 1 & Part 2
• Reliable releases and rollbacks - CRE life lessons
• How release canaries can save your bacon - CRE life lessons
• Things I Learned Managing Site Reliability for Some of the World’s Busiest Gambling Sites
• Every Day Is Monday in Operations
• Under the Hood: Ensuring Site Reliability
• Designing reliable systems with cloud infrastructure (Google Cloud Next '17)
• A Google SRE explores GitHub reliability with BigQuery
• Know thy enemy: how to prioritize and communicate risks - CRE life lessons
• Chaos Engineering resources
• CRE life lessons: What is a dark launch, and what does it do for me?
• Why you should pick strong consistency, whenever possible
• The Network is Reliable
• Are You Load Balancing Wrong?
• How production engineers support global events on Facebook
• Google: A Collection Of Best Practices For Production Services
• Canary Analysis Service
• Tips for High Availability
• Progressive Service Architecture At Auth0
• Google Cloud Production Guideline
• production readiness
• Trust By Design: The Fusion of Operational Maturity and Risk Modeling
• Top Seven Myths of Robust Systems
• Taming chaos: Preparing for your next incident
• PID Loops and the Art of Keeping Systems Stable
• Are you ready for production? - Slides
• Production Checklist for Web Apps on Kubernetes
• Finding a problem at the bottom of the Google stack
• Rethinking Task Size in SRE
• How maintenance windows affect your error budget
• The Production Readiness Spectrum
• Generic mitigations
• How we’re building a production readiness review process at Grafana Labs
• Resiliency Planning for High-Traffic Events
• Using Fault Injection Testing to Improve DoorDash Reliability

Monitoring & Observability & Alerting

• A Working Theory-of-Monitoring
• The Evolution of Monitoring Systems at Google - Tony Rippy
• Monitoring without Infrastructure @ Airbnb
• Monitoring distributed systems
• Observability at Uber Engineering: Past, Present, Future
• The 4 Golden Signals of API Health and Performance in Cloud-Native Applications
• My Philosophy on Alerting by Rob Ewaschuk
• Time To Detect - Netflix
• Why Percentiles Don’t Work the Way you Think
• Building Twitter’s Next-Gen Alerting System
• Instrumentation: Worst case performance matters
• Instrumentation: What does 'uptime' mean?
• Incidents + Outages at CircleCI: Our Playbook and What We’ve Learned
• An introduction to monitoring and alerting with timeseries at scale, with Prometheus
• Detecting outliers and anomalies in realtime at Datadog
• How to Monitor the SRE Golden Signals
• Monitoring in a DevOps World
• Monitoring Your Monitoring’s Monitoring
• Observability: the new wave or buzzword?
• Monitoring Isn't Observability
• Monitoring in the time of Cloud Native
• Principles of Monitoring Microservices
• The Many Ways Your Monitoring Is Lying to You
• GitOps Part 3 - Observability
• Want to Debug Latency?
• Debugging Latency in Go 1.11
• Alerting on SLOs like Pros
• Applied Alerting Philosophy
• Observations on Observability
• Deploys: It's Not Actually About Fridays
• Site Reliability Engineering Best Practices for Data Pipelines
• Elastic Observability in SRE and Incident Response
• Error Budget Policy - Part 1 - Adoption at Expedia Group
• Error Budget Policy - Part 2 - Practices at Expedia Group

On-Call

• Being an On-Call Engineer: A Google SRE Perspective
• Inside Atlassian: how our site reliability engineers do incident management
• Inside Atlassian: how IT & SRE use ChatOps to run incident management
• Incident Response at Heroku
• Who's On Call?
• SysAdvent - Day 6 - No More On-Call Martyrs
• On Being On Call
• The On-Call Handbook
• Incident management at Google — adventures in SRE-land
• Run Book / Operations Manual template
• Automating Your Oncall: Open Sourcing Fossor and Ascii Etch
• Project STAR*: Streamlining Our On-Call Process
• SRE@Xero: Managing Incidents Part I
• SRE@Xero: Managing Incidents Part II
• How To Establish a High Severity Incident Management Program
• How Your Systems Keep Running Day After Day - John Allspaw
• On-call doesn’t have to suck
• Why, as a Netflix infrastructure manager, am I on call?
• Oncall and Sustainable Software Development
• On Call Rotations: How Best to Wake Devs Up in the Middle of the Night
• Understanding The Role Of The Incident Manager On-Call (IMOC)
• 3 Ways to Minimize the Impact of High Severity Incidents
• Advice to Management Teams While Enrolling Changes to On-Call Systems
• Moving Past Shallow Incident Data
• Sustainable On-Call
• dotScale 2017 - Aish Raj Dahal - Chaos management during a major incident
• Incident Management at Netflix Velocity
• Incidents, fixes, and the day after
• 10 Steps to Develop an Incident Response Plan You’ll ACTUALLY Use
• Checklists: a stupidly simple but valuable operational gift
• How to write a status page update
• Atlassian Incident Handbook
• PagerDuty Incident Response Handbook
• Avoiding Burnout for SREs
• Better On-Call the SRE way
• Managing Incidents at Monzo
• Making On-Call Not Suck
• How we (Monzo) respond to incidents
• How we’ve evolved on-call at Monzo
• Code Yellow: When Operations Isn’t Perfect
• MTTR is dead, long live CIRT
• Extended Dreyfus Model for Incident Lifecycles
• Inhumanity of Root Cause Analysis
• Incident insights from NASA, NTSB, and the CDC
• How to avoid On-Call Burnout the SRE Way
• My week shadowing a GitLab Site Reliability Engineer
• How our production team runs the weekly on-call handover
• Writing Runbook Documentation When You’re An SRE
• Incident response, programs and you(r startup)
• An Incident Command Training Handbook
• Shrinking the time to mitigate production incidents
• Incident writeup as sociological storytelling
• Elephant in the Blameless War Room: Accountability
• Naming names in incident writeups
• Building On-Call Culture at GitHub

Post-Mortem

• A collection of post-mortems
• Collection of Kubernetes Failure Stories
• Blameless PostMortems and a Just Culture
• A Tale of Postmortems
• Building a Blameless Post-Mortem Culture with Jason Hand
• The infinite hows
• Failure is Always An Option: How a Blameless Culture Leads to Better Results
• SysAdvent - Day 1 - Why You Need a Postmortem Process
• Etsy’s Debriefing Facilitation Guide for Blameless Postmortems
• Writing Your First Postmortem
• How to Write Great Outage Post-Mortems
• A collection of postmortem templates
• Embracing Feedback
• Postmortem Action Items: Plan the Work and Work the Plan
• Social Issues In Postmortems
• Google Has an Official Process in Place for Learning From Failure--and It's Absolutely Brilliant
• Postmortem culture: how you can learn from failure
• re:Work - Postmortem discussion template
• Post-mortems to the rescue
• Postmortem Action Items: Plan the Work and Work the Plan
• Why Every Company Can Benefit from a Blameless Culture
• "It's dead, Jim": How we write an incident postmortem
• Our incident postmortem template
• Learn out of mistakes. Postmortems to the rescue.
• Improving Postmortem Practices with Veteran Google SRE, Steve McGhee
• Inhumanity of Root Cause Analysis

Capacity Planning

• Capacity Planning
• SouthBay SRE: Cloud Capacity Planning
• Intent-based Capacity Planning and Autoscaling with Kubernetes
• How do you do Capacity Planning
• How Back Market SREs prepared for Black Friday

Service Level Agreement

• If It's in the Cloud, Get It on Paper: Cloud Computing Contract Issues
• Service Level Agreements in the Cloud: Who cares?
• SysAdvent- Day 20 - How to set and monitor SLAs
• SLOs, SLIs, SLAs, oh my - CRE life lessons
• Service Levels and Error Budgets
• (Un)Reliability Budgets - Finding Balance between Innovation and Reliability
• The Calculus of Service Availability
• Availability Calculator: Calculate how much downtime should be permitted in your SLA
• Standardize cloud SLA availability with numerical performance data
• Best practices to develop SLAs for cloud computing
• A Practical Guide to SLAs
• Building good SLOs - CRE life lessons
• No Grumpy Humans and Other Site Reliability Engineering Lessons from Google
• Consequences of SLO violations — CRE life lessons
• Service Level Objectives in Practice
• SRE Consensus Building
• An example escalation policy — CRE life lessons
• Error Budget Calculator
• Understanding error budget overspend - part one - CRE life lessons
• Good housekeeping for error budgets - part two - CRE life lessons
• SRE fundamentals: SLIs, SLAs and SLOs
• SLOs & You: A Guide To Service Level Objectives
• Earning Our Wings: Stories and Findings From Operating a Large-scale Concourse Deployment
• Nines are Not Enough: Meaningful Metrics for Clouds
• How many nines is my storage system?
• Don't follow the sun.
• The Tyranny of the SLA
• Backblaze Durability is 99.999999999% — And Why It Doesn’t Matter
• DevOpsDays Chicago 2019 - The Art of SLOs
• The Art of SLOs Workshop Materials
• How to Include Latency in SLO-Based Alerting
• Succeeding With Service Level Objectives
• Putting customers first with SLIs and SLOs
• SRE Leadership: Have Tiered SLAs
• How SLOs Enable Fast, Reliable Application Delivery
• The Tail at Scale
• The Tail at Scale Revisited
• Defining SLOs for services with dependencies
• Service Level Disagreements
• How We Use Sloth to do SLO Monitoring and Alerting with Prometheus
• SLI Deep Dive
• Measuring Reliability in GCP: Step By Step SLO creation guide using Cloud Operation Sandbox
• SLO tracker
• SLO Alerting for Mortals
• SRE methods and climate change
• What made SLOs so messy (and what we can do about it)
• SLICK: Adopting SLOs for improved reliability
• Calculating composite SLA
• Best practices for setting SLOs and SLIs for modern, complex systems

Performance

• Performance Checklists for SREs
• South Bay SRE Meetup - Netflix Cloud Performance Team
• Software Performance Analysis Guided By SLOs
• A framework for pragmatic performance engineering

Programming

• Go Language for Ops and Site Reliability Engineering
• Go for SREs using Python
• Operability in Go
• Go Reliability and Durability at Dropbox

Misc Articles

• What is SRE (Site Reliability Engineering)?
• Here’s How Google Makes Sure It (Almost) Never Goes Down
• Are site reliability engineers the next data scientists?
• Site Reliability Engineers: "solving the most interesting problems"
• Site Reliability Engineers: the "world’s most intense pit crew"
• Site reliability engineering kicks rote tasks out of IT ops
• Notes on Site Reliability Engineering
• Adventures in SRE-land: Welcome to Google Mission Control
• Book Review: Site Reliability Engineering - How Google Runs Production Systems
• Site Reliability Engineers: “We solve cooler problems”
• SREcon17: Brave new world of site reliability engineering
• Open AWS guide
• Commentary on Site Reliability Engineering
• Site Reliability Engineering: 4 Things to Know
• Looking for SRE Success? Then Find the Intrapreneurs!
• What Team Structure is Right for DevOps to Flourish?
• Injured on Vacation? Applying Principles from Site Reliability Engineering to a Travel Emergency
• Building blameless working environment
• SRE Adoption Report
• SREs: The Happiest – and Highest Paid – in the Industry
• The Role of Site Reliability Engineering, Today and Tomorrow
• SRE as a Lifestyle Choice
• SRECon EMEA 2019 Recap
• Life of an SRE at Google - JC van Winkel
• Site Reliability Engineering for Native Mobile Apps - Abhijith Krishnappa - Case study: Halodoc adaptation of SRE principles for Native Mobile Apps
• SRE Best Practices by InfraCloud

Real-time Messaging

• #sre channel at Hangops Slack - Discussion of Site Reliability Engineering generally.
• #incident_response channel at Hangops Slack - Discussion about Incident Response.
• USENIX SREcon Slack

Blogs

• Brendan Gregg's Blog - Highly Technical Blog Posts About Systems Internals, Performance and SRE.
• Everything Sysadmin - Blog Posts About SysAdmin/DevOps/SRE by Tom Limoncelli.
• High Scalability - Technical Blog Posts About Systems Architecture.
• rachelbythebay - Techincal Blog Posts.
• Susan J. Fowler - Various blog posts about SRE, Software Engineering and Microservices.
• SysAdvent - One article for each day of December, ending on the 25th article.
• Stephen Thorne's Blog - Blog Posts About SRE
• Increment - A digital magazine about how teams build and operate software systems at scale.
• GopherSRE - Blog Posts about Go and SRE.
• Cindy Sridharan - Blog posts about distributed systems and their management.
• Blameless Blog - Blog posts about SRE culture and practices.
• Resilience Roundup - Weekly analysis of Resilience Engineering and Human Factors research designed for software systems
• Squadcast Blog - Blog posts about SRE best practices, reliability, on-call and incident management.
• FireHydrant Blog - Posts about complex systems, incident response, and SRE best practices.
• Rootly Blog - Incident management best practices and guides.
• incident.io Blog - Guides, advice and resources on incident management and response.
• Logit.io Blog - Resources on log management, SRE and devOps.

Newsletters

• DevOpsLinks - A weekly newsletter about SRE, SysAdmin and DevOps news, tools, tutorials and opinions.
• KubeWeekly - The weekly newsletters for all things Kubernetes. KubeWeekly is curated by Bob Killen, Chris Short, Craig Box, Kim McMahon and Michael Hausenblas
• SRE Weekly - Weekly Site Reliability Newsletter.
• O’Reilly Systems Engineering and Operations Newsletter - Weekly systems engineering and operations news and insights from industry insiders.
• ChaosEngineering.news - Chaos Engineering newsletter. All things Chaos Engineering, directly to your inbox!
• Monitoring Weekly - What's new in monitoring? Curated monitoring articles to your inbox each week.
• Observability news - Updates around observability (o11y) with a special focus on open source.

Conferences & Meetups

• SRECon Conferences - The Official SRE Conference.
• LISA Conferences - Prominent Conference About SysAdmin/DevOps/SRE.
• SRE Tech Talks - SRE Talks Hosted by Google.
• South Bay Site Reliability Engineering (Sunnyvale, CA) Meetup - A Group For Individuals Who Tackle Reliability Challenges For Web-Scale Systems.
• San Francisco Reliability Engineering - A Group Of People Who Are Passionate About Reliable, Performant Software Systems.
• Site Reliability Engineering Munich, Germany - SRE Meetup in the greater area of Oktoberfest city.
• ADDO - All Day DevOps - A 24 hour conference that is completely online and free.
• Site Reliability Engineering Paris, France - SRE Meetup in the city of light.
• Site Reliability Engineering India - SRE Meetup India

Twitter

• Google SRE Twitter Account - Google's SRE Twitter Account.
• SREBook - The Official Twitter Account of Site Reliability Engineering Book.
• SREcon - SRECon's Official Twitter Account.
• SREWorkbook - The Official Twitter Account of Site Reliability Workbook.
• The SRE Dev - SRE-related Posts from dev.to.
• Twitter SRE - The Official Twitter Account of Twitter's SRE team.
• Twitter SRE Weekly - The Official Twitter Account of SRE Weekly Newsletter.
• USENIX Association - The Official USENIX Twitter Account.

SRE Tools

• Awesome SRE Tools - A curated list of Site Reliability and Production Engineering tools
• List of Continuous Integration services
• SRE cheat sheet - A cheat sheet for Site Reliability Engineering principles and numbers

Podcasts

• Blameless / Resilience in Action
• Google SRE Prodcast
• o11y Observability Podcast
• On Call Nightmares (retired)
• Making of the SRE Omelette