Bokeh is a Python interactive visualization library for large datasets that natively uses the latest web technologies. Its goal is to provide elegant, concise construction of novel graphics in the style of Protovis/D3, while delivering high-performance interactivity over large data to thin clients.
Modest Maps is a display and interaction library for tile-based maps in Flash and Python that can display maps from external sources (e.g. OpenStreetMap, NASA Blue Marble, Yahoo!, Microsoft, but not Google Maps
Pattern is a Python web mining module with tools for data retrieval (Google + Twitter + Wikipedia API, web spider, HTML DOM parser), text analysis (rule-based shallow parser, WordNet interface, syntactical + semantical n-gram search algorithm, tf-idf + cosine similarity + LSA metrics) and data visualization (graph networks).
Using Google Spreadsheets as the backend database is awesome because it is easy to use, share and collaborate with." -- website
VIVO is an open source semantic web application originally developed and implemented at Cornell. When installed and populated with researcher interests, activities, and accomplishments, it enables the discovery of research and scholarship across disciplines at that institution and beyond. VIVO supports browsing and a search function which returns faceted results for rapid retrieval of desired information.
A software tool for the manipulation of audio recordings. Wavesurfer provides basic audio editing function, such as excision, copying, pasting, zero-crossing adjustment, and effects such as fading, normalization, echo, inversion, reversal, replacement with silence, and DC-removal.