Cardio is a library that can play back many different audio files (MP3, FLAC, WV, MOD, etc.). It handles both the input (reading files) and output (writing audio). Cardio is extensible via plugins, many of which are available at the Cardio Web site.
A slackbuild utility.
A system to generate PDF reports from MS SQL Server 2000 & 2005 Reporting Services.