To learn more about website performance, here are some resources and people to follow. (Be warned: some of the content is technically tough.)
- The Yahoo Developer Network Performance Section
Home of YSLow and probably the first official performance research website. - Performance Planet
A collation of all performance blogs and posts in one RSS feed. - Steve Souders (@souders)
Ex-maintainer of the performance section of Yahoo, now at Google. Author of the biggest performance books. And organizer of the Velocity conference. - Nicole Sullivan (@stubbornella)
Ex-team member of the performance group at Yahoo and co-creator of Smush.it. Also CSS performance goddess with great tips for designers. Currently working on making Facebook perform better. - Stoyan Stefanov (@stoyanstefanov)
Coder of Smush.it and member of the performance team at Yahoo. Created his own advent calendar of performance tips this year, and runs Performance Planet, as mentioned above. - Ed Eliot and Stuart Colville
Builders of the CSS Sprite Generator. - Jake Archibald (@jaffathecake)
Lead developer of the BBC’s Glow library. Delivered a great talk on performance at this year’s Full Frontal conference. - Phillip Tellis (@bluesmoon)
Performance junkie at Yahoo. - And me, their fanboy and person asking for features: Chris Heilmann (@codepo8).
Watch Some Videos
If you want to see how some of this work, check out the following videos, especially Nicole Sullivan’s, which shows some very cool CSS tricks:


