You’ll find out everything you need to know about drop caps on web in this fine article (do not miss it).
Read this masterpiece and learn something new about CSS borders (or at least refresh your knowledge).
This is a pretty neat trick you may or may not find useful one day; however, you’ll surely find that this article is educational, interesting, amusing and maybe (just maybe) even thought provoking.
I can think of at least a dozen uses for blending modes on web; I bet you can too. And I bet you eagerly want to start playing with them (just like I do).
This could become the new (better) way to handle sprite images.
A technical read you might find very enjoyable (if you like technical CSS articles).
A nice article about new webkit properties that you’ll surely find useful (if not sooner, when other vendors adapt them).