A playcast is a podcast that you create out of a playlist. Using Playcaster and built in features of OS X, you can share your playlists with friends. Playcaster combines all of the songs from an iTunes playlist into one large MP3, then uses OS X Web sharing to build a podcast out of your playcasted playlists. Your friends can subscribe to your feed in any RSS reader or iTunes and listen to your playlists.
Credence is a tool for combating spam and pollution in filesharing networks. It lets you vote on files in the network, analyzes the votes of your peers so that you can avoid polluted files, and automatically identifies the voters in the network that are most credible and useful. It is built as an extension to LimeWire, running on the Gnutella filesharing network.
Torrent Swapper is a sociable peer to peer file-sharing client based on the BitTorrent protocol. It has a basic understanding of human friendships, of user tastes in content, and of Internet connectivity between users. Torrent Swapper boasts unique features like Amazon-like recommendations to get interesting files, doubling the download speed by using the upload capacity of friends, real-time P2P file sharing with P2P video streaming, and showing the locations of seeders and leechers of the same content with city-level accuracy on a world map.
Twibright Twig is a static HTML photo gallery software that supports organization of JPEG and PNG images into a directory structure and EXIF and JPEG comments. It is meant for more experienced users rather than newbies. Three levels of downscaled image and three levels of thumbnails are generated. Each image is assigned a unique identifier to faciliate easy random linking from a master Web site. It handles reasonable large galleries (and is currently used for a 3GB one). Automatic regeneration of added, changed, and deleted images can be done with one script.