The folks at Mozilla decided it was time someone started up a central repository for all of the great open web development resources out there, and the result is an extremely useful site called the Open Web Tools Directory. It's full of frameworks, library, SDKs, and anything else you might need to make your web app easier to build. The eclectic mix includes popular powerhouses like jQuery and Google Web Toolkit, but it also has debugging tools and ways to generate favicons.

The directory is laid out as a series of scattered icons on a space-themed background. It looks cool, and utilizes the capabilities of the latest browsers, but there's no "view as list" option as yet. There are some ways to find what you;re looking for, though: category tabs can be turned on and off to limit your browsing, and there's a basic search. It would be nice to see a more detailed information display for each tool you click on, but the directory is off to a good start. It's nowhere near complete, though, so add your own favorite web dev tools to the list if you don't see them there already.