mootools Those crazy guys who brought us moo.fx are back with an even more ambitious project. Mootools appears to be a complete dhtml/Ajax JavaScript framework, kind of like a mini-Dojo, but still based on prototype.js. The demos aren't in place yet, but you can configure a download to meet your needs. Like Dojo, mootools lets you pick and choose the parts that you want, and then have it delivered in one package, compressed in one of three ways. I definitely want to spend some time looking at this when they get their demos done, but in the meantime it's fun watching the navigation animation they've set up.