Performance and the cloud - the era of the end user

Online Performance is Business Performance

YSlow/Chrome Hacking

Problems with Performance Testing in a Shared Environment

Testing for Performance - Part 1

Testing for Performance - Part 2

Testing for Performance - Part 3

Load Testing vs. Performance Testing

What Every Web Developer Should Know About Front-end Performance

Google Testing Blog - Performance Testing

Problems with Performance Testing in a Shared Environment

Identifying Bottlenecks

PerformanceWiki (Tuning Tips)

Web Performance Tuning

Bottlenecks Exposed

Load Testing Tools

Open Source Tools

Improve Tester Performance

Software Testing Questions

Stress Testing