http://www.phatfusion.net/ - interesting JS sample

Opera study: only 4.13% of the web is standards-compliant

http://www.loki.com/
http://fireeagle.yahoo.net/

Firefox: Geode

JQuery API Reference

How to design good API and why it matters

http://smushit.com/ - Image optimizer plugin for firefox.

javalid - An example to create my own validator annotation. This is for project enhancement.

Java Simple Exchange Format API - can be something like feed processor.

How to handle bookmarks and back button for Ajax applications