All links are listed in order, from most recent to least recent.
13 Questions (and Answers) About Google, Site Speed, and SEO [article]
SEOmoz – June 18, 2012
Summary: In this article, Strangeloop president Joshua Bixby breaks down how site speed and performance metrics affect Google page ranks. For anyone who has ever wondered how Google manages to make performance metrics affect SEO, this article is a must-read.
FAQs: The 12 most-asked questions about how Google factors page speed into its search rankings [blog post]
Web Performance Today - Aug 5, 2011
Summary: Strangeloop president Joshua Bixby answers the most common questions he fields about Google, page speed, and SEO.
The Growing Need For Speed: How Site Performance Increasingly Influences Search Rankings [case study]
Retail Touch Points - May 19, 2011
Summary: For Smartfurniture.com, faster pages = 20% more organic traffic = 14% more page views = more online sales.
Optimizing Page Speed - Actionable Tips For SEOs and Web Developers [blog post]
SEOmoz - May 8, 2011
Summary: Good tips on how to pluck low-hanging fruit to quickly optimize performance.
Case Study: Impact of Code Cleanup on Site Traffic [article]
Search Engine Watch - Mar 6, 2011
Summary: How one site reduced page load times from 15s to 5s and cleaned up broken links and redirects, and as a result experienced a 40% traffic increase.
Site Speed - Are You Fast? Does it Matter? [blog post]
SEOMoz - Feb 20, 2010
Summary: An "unscientific study" that attempts to find a connection between site speed and Google pagerank.
Will Page Load Time Be More Of A Ranking Factor In 2011? [article]
Search Engine Round Table - Jan 20, 2011
Summary: No ironclad answers here, but some interesting ideas and speculation.
Google SEO News and Discussion Forum [discussion forum]
Webmaster World - ongoing
Summary: The discussion thread on Webmaster World that sparked the above post.
Effects of website speed optimizations on Google [case study]
LightSpeedNow - Jul 31, 2010
Summary: After speeding up web page load times by 45%, a test site experienced a 15% increase in Google search traffic.
Google incorporating site speed in search rankings [blog post]
Matt Cutts - Apr 9, 2010
Summary: Matt Cutts, head of Google's Webspam team, offers his "don't panic" interpretation of Google's announcement that web page speed is a factor in how it ranks search results.
Using site speed in web search ranking [blog post]
Google - Apr 9, 2010
Summary: Google's official announcement that site speed is now a factor in its search ranking algorithm.