webkit and chrome internals
I went along to the SF Web Performance Meetup last night, for a talk by Ilya Grigorik which was one of the best and most informative Meetups I've been along to - lots of meaty details on how Webkit in general works, and specifically how Chrome uses it across the many platforms it runs on.
The video has just been posted here -
Ilya starts speaking around the 12 minute mark..