This site contains 8300 articles from the math encyclopedia PlanetMath.org — the only thing we added is a navigational panel on the left, where some metadata about each article is displayed.
Especially we computed the pagerank of each article and clustered them into 36 chunks, which we call chambers here. If an article is e.g. in the first chamber, it indicates a kind of higher importance (within the universe of the PlanetMath.org articles) than an article in chamber 30. Additionally incoming and outgoing links are displayed for each article, sorted by their pagerank/chamber.
The current version uses the snapshot from January, 12th 2009.
The following two images visualize the link matrix. The dots are scaled (by factor 100), since the matrix is sparse. In the first picture, the articles are ordered by pagerank; in the second the order is as random as the database importer script.
Retype is a JQuery plugin which lets you type in a html textarea in multiple languages or multiple writing systems without switching the input language on your operating system. It has been tested on Gecko- and Webkit-based Browsers.
The first example shows a native german input (since I am typing on a german keyboard) side by side with a russian keyboard map, which is suitable for native german speakers. The second example shows a ROT13 substitution cypher along with normal input, some example for multi character input, and a dvorak simplified keyboard mapping.