August 2008
Outstanding Elephant - jARIA
jARIA is a plugin for the jQuery javascript library that adds ARIA support to Web applications. It is based on a javascript library written for Mozilla by IBM.
it seems to be a good start
April 2008
Tonic: A RESTful Web App Development PHP Library
by 2 othersTonic is an open source less is more, RESTful Web application development PHP library designed to do things "the right way", where resources are king and the library gets out of the way and leaves the developer to get on with it.
web.py-like in PHP, more verbose though.