Supafly DHTML - Moo.fx

I don't usually fall all over the latest CSS and DHTML tricks, but this one's killer. It's got a Macromedia-Flash like smoothness that you can use to do some wicked cool animations inside pure HTML pages. Hide information, grow sections of content organically, slide content from position to position. If AJAX actually means something, it should mean this. Check out moo.fx - a library of DHTML components that are super-lighweight and exceptionally easy to integrate.