Yahoo open-sources some truly amazing code.
If your web dev folks haven't checked out Yahoo's free "YUI" library (Yahoo User Interface) recently, they really should.
The framework provides helpful high-quality code for Ajax, calendars, events, logging, sliders, trees, auto-complete, color picking, mobile devices, drag-and-drop, and text editing. And solid foundations like their excellent CSS reset, base, fonts, and grids.
Big selling point for me: YUI libraries work happily across modern browsers. The cross-browser aspect alone cuts out sooooo much hassle and soooo much wasted time.
(Sure, Google provides a similar GWT -- Google Web Toolkit -- but I'm partial to the Yahoo code.)
That's really neat little app and a big timesaver.
Link: YUI CSS Grid Builder