Drivel is a GNOME client for working with online journals, also known as weblogs or simply blogs. It retains a simple and elegant design while providing many powerful features, including support for LiveJournal, Blogger, MovableType, Advogato, and Atom journals. (Systems based off these are also supported, including WordPress and Drupal.)
LiVES is a simple to use yet powerful video effects, editing, conversion, and playback system aimed at the digital video artist and VJ. It runs under Linux, BSD, Mac OS X/Darwin, IRIX, and openMosix. It is frame and sample accurate, can handle almost all types of video, and is fully extendable through plugins and the included plugin builder tool. It can also be controlled remotely using OSC.
XdTV is a program to watch, record, and stream TV. It interacts with AleVT (Teletext) and Nxtvepg (NextView) and supports the bttv, bktr, and dvb APIs. It contains some deinterlacing filters and records video files with various containers (AVI, MPEG, Ogg, etc.) and many codecs: FFMpeg >=0.4.6, XviD 0.9 and 1.x, DivX 4 and 5, and Vorbis/Theora >=1.0a5. It has some plugin capabilities.
GNU Gadu 2 is a modular instant messaging client with a GUI written in GTK2. It currently supports Gadu-Gadu, Tlen.pl, and Jabber. It is able to load Perl scripts, dock in several window managers, play sounds, talk to other programs via a UNIX socket, send SMS messages to Polish GSM operators, automatically check for updates, and use XOSD for displaying notices.