A good history lesson in rendering engines: KHTML, WebKit, and now, Blink.
This handy matrix shows the effect of different -webkit-font-smoothing setting on various text combinations (serif/san-serif light/dark, etc.).
Insanely in-depth look at how browsers work, right down to the nitty gritty. You’d think there’d be a lot of engineering talk, but actually a lot of it is more about linguistics and language parsing.
This is wonderful stuff: a long-term project to track the performance of high-traffic sites over time: oodles of lovely data and some quite shocking stats.
A blog of all things webkit, itself showcasing some of the CSS niceties in the rendering engine.