'fully customizable'

Create Synchronicity: an easy, fast, and lightweight backup and synchronization application

Note: This is not an endorsement.

multi-platform

Scribus Open Source Desktop Publishing

Note: This is not an endorsement.

HTML5 player w/ Flash fallback

FlareVideo

'DHTML game'

Bombada, made with Diggy, "an open source game engine written in JavaScript"

'aims to be an alternative'

chive - MySQL database management tool

Note: This is not an endorsement.

'simple, usable podcast consumption'

gPodder, a free podcast aggregator...

Note: This is not an endorsement.

prevent anticipated spam

tempalias - Temporary Email Aliases
[The Letter]

Note: This is not an endorsement.

developed by whitehouse.gov

WhiteHouse.gov Releases Open Source Code (plugins for Drupal content management platform)

source for desktop icons

Open Icon Library

the 'Frankencamera'

Open-source camera could revolutionize photography

'a level playing field'

UK government backs open source

to become open source

Sun 'releases' Java to the world

plugin

Freetag – "an Open Source Tagging / Folksonomy module for PHP/MySQL applications" [Waxy.org Links]

SVG Art

Inkscape – "an open source SVG editor with capabilities similar to Illustrator, CorelDraw, Visio, etc. Supported SVG features include basic shapes, paths, text, alpha blending, transforms, gradients, node editing, svg-to-png export, grouping, and more."

Open Clip Art Library – large repository of Public Domain images in SVG format.

open source apps

The BlogBox Project.  "Blogboxes provide exciting, instantly deployed functionality for your blog or Web site. They are free for non-commercial use. Enjoy them and spread the good word!"