Many other people have mentioned this, but in case you haven't seen it and you're doing web-based development, you really should check out the Yahoo Design Patterns Library. It's simply an excellent resource. Run, don't walk.
Does anyone know who's actually behind this site? If so I'd like to follow their blogs. What the heck's going on with Yahoo anyhow? In 2001, I dropped Yahoo and their busy "search portal" in favor of the simplicity of Google. But Yahoo's just been doing some great stuff around DHTML, Ajax, and open source. Did they get a high-level brain transplant or something in the past couple of years?
- Bill (email@example.com).
Yahoo Design Patterns Library