The ultimate package for working with data on the web! TableGear is a drop-in solution that allows you to get data from a database (or other source) into a dynamic HTML table that can be sorted, edited, and customized, with as little pain as possible!
HotText lets users interact with your forms more intuitively by allowing sequential data to be incremented simply by clicking and dragging. Now compatible with TableGear!
QuickBox is a simple Lightbox clone written for MooTools 1.2. In addition to being zippy and lightweight, it adds new features over other Lightbox clones like use of the mouse wheel and custom captions.
Carousel is an intuitive UI widget that helps visualize a preview of "items" without actually linking to a different page.
Update: If you own a hosting company and would like to contribute, I am always interested in server space, especially VPS setups. Please send me a message if you would like to help out, and thanks!