Circos is a software package for visualizing data and information. It visualizes data in a circular layout — this makes Circos ideal for exploring relationships between objects or positions. There are other reasons why a circular layout is advantageous, not the least being the fact that it is attractive.

Pygame is a set of Python modules designed for writing video games. Pygame adds functionality on top of the excellent SDL library. This allows you to create fully featured games and multimedia programs in the python language.

Pygame is highly portable and runs on nearly every platform and operating system.

Substance is a fully web-based document authoring and publishing platform and an attempt to implement the idea of Freedom of Information.

With Substance, writers, journalists, scientists and everyone else who's interested in publishing can use an open platform for writing and sharing articles.

Document authoring used to take place in word processors on the Desktop (like MS Word or Open Office). We believe that now this can all be be done in the browser, in a simpler, more collaborative way.

Substance is open source and licensed under GPLv3.