OpenCV (Open Source Computer Vision) is a library of programming functions for real time computer vision.
Iphone, Ipad, Ipod touch support under Linux
Tweener (caurina.transitions.Tweener) is a Class used to create tweenings and other transitions via ActionScript code for projects built on the Flash platform. It's released and maintained for these versions:
calibre is a free and open source e-book library management application.
Simple flash game in haXe
xmpppy is a Python library that is targeted to provide easy scripting with Jabber
Asynchronous Unit Test Framework for haXe
Lightweight GUI framework for haXe targetting Flash 7, Flash 8 & Flash 9
This is A pathfinding library. It has simple API for easy use in games
Raphaël is a small JavaScript library that should simplify your work with vector graphics on the web. In case you want to create your own specific chart or image crop-n-rotate widget, you can simply achieve it with this library.
Here is my short list of the most important open source [free] information retrieval libraries being used today that are undergoing active development as of writing. It is a mixture of engines used for both research and industrial applications.
Mapstraction is a library that provides a common API for various javascript mapping APIs to enable switching from one to another as smoothly as possible.
Boost provides free peer-reviewed portable C++ source libraries.
Zotero [zoh-TAIR-oh] is a free, easy-to-use Firefox extension to help you collect, manage, and cite your research sources.
The Freesound Project is a collaborative database of Creative Commons licensed sounds. Freesound focusses only on sound, not songs
