The ATLAS (Automatically Tuned Linear Algebra Software) project is an ongoing research effort focusing on applying empirical techniques in order to provide portable performance. It provides C and Fortran77 interfaces to a portably efficient BLAS implementation, as well as a few routines from LAPACK.
GeoToad is a geocaching query tool to help speed up the boring part of geocaching: choosing the cache and collecting the data. It allows you to generate any kind of complex query you want, and the program will go and poll the Geocaching query, grab the data, and output it to any format you want. The Geocache info can be synced straight to your GPS, iPod, PDA, or cell phone in over 20 different formats.
drraw is a simple Web-based presentation front-end for RRDtool that allows you to interactively build graphs of your own design. A graph definition can be turned into a template which may be applied to many Round Robin Database files. Unlike most other RRDtool front-ends, drraw does not take care of collecting data and updating Round Robin database files. Instead, it specializes in providing an easy means of displaying collected data, making it a great complement to other RRDtool front- ends.
wxMusik is a fast and lean music library player for Windows and Linux. It supports MP3, MP2 , Ogg, APE, MPC, and FLAC, WAV, and AIFF formats on all platforms and WMA on Windows. It features powerful dynamic playlists that use SQLite, supports listening to Icecast and Shoutcast streams in a reliable manner, and has a nice cross-fading feature and a really cool autodj feature.