Sweetcode.org: haven’t looked at it in 6 months, but it’s got great stuff, like:
CRM-114 “is a system to examine incoming e-mail, system log streams, data files or other data streams, and to sort, filter, or alter the incoming files or data streams according to whatever the user desires. Criteria for categorization of data can be by satisfaction of regexes, by sparse spectra, or by other means. Accuracy of the sparse spectra function has been seen in excess of 99 per cent, for 10+ megabytes of learning text”.
Panorama Tools : “Software to View, Create, Edit and Remap Panoramic Images”. If I can ever afford to get all my photos printed, I’ll need this.