BloGTK is a weblog client that allows you to post to your weblog from GNOME without the need for a separate browser window. (BSD)

choqoK is a Free/OpenSource fast, efficient and simple to use mono-blogging client for K Desktop Environment. (GPL)

Gwibber is an open source microblogging client for GNOME developed with Python and GTK. (GPL)

HTTP Ripper is a tool to rip content out of the web. (GPL)

HTTrack is a free (GPL, libre/free software) and easy-to-use offline browser utility. (GPL)

Pino is Twitter and Identi.ca client for Linux desktop. It's simple and fast. (GPL)

The SpamBayes project is working on developing a statistical anti-spam filter. SpamBayes will attempt to classify incoming email messages as 'spam', 'ham' (good, non-spam email) or 'unsure'. (PSFL)

Tor is a network of virtual tunnels that allows people and groups to improve their privacy and security on the Internet. (GPL)

wxDownload Fast (also known as wxDFast) is an open source download manager. (GPL)

xVideoServiceThief is a tool for downloading your favourite video clips from a lot of video websites. (GPL)