Chris Nott runs a site named dithered.com which has only a few things, but they are choice. If you create web sites, you’ll want to take a look around. In particular, he has a section about CSS Hacks which attempts to make sense of the confusing morass of tricks to get CSS to display properly in the wide array of buggy browsers out there. For example, his table of CSS-only filters (CSS constructs that use browser quirks to interpret differently in different browsers) is amazing. I’m not sure it actually makes the situation clearer, but it certainly is chock-full of information.