From the makers of Tomboy: "Erlang-style concurrency with JavaScript". Has support for DOM and AJAX - I am looking forward to Google Gears worker threads support.
A new, API-breaking YUI release is coming. Would be interesting to compare what's new there with recent development in Dojo and Ext JS.
If you are building Javascript based web applications that rely on SSL for security, caching is always an issue. qUIpt tries to solve this by using the window.name as a cache key.
A Java-based library for PDF viewing, printing, extraction, includes Flex viewer.
4 links here
