Firefox The award-winning Web browser from Mozilla is now faster, even more secure, and totally customizable to your online life.
Flock is a free web browser that makes it easy to connect with your friends and express yourself online.

Flash Player is the high-performance, lightweight client runtime that delivers powerful and consistent user experiences across major operating systems, browsers and mobile phones.

BlogBridge is for true info-junkies who want a better way to wrangle all their RSS feeds from blogs and news into one pretty cool organizer.
Liferea, a simple and free desktop news aggregator for Unix/Linux.
RSSOwl cross-platform desktop application to read RSS subscriptions.
PenguinTV is not just another RSS feed reader. It is designed from the ground up to work seamlessly with podcasts and video blogs, allowing you to easily enjoy the audio, music, and video published around the web in RSS format.
Miro (Formally Democracy Player) is a platform for Internet television and video. It allows you to download and watch videos from RSS feeds.

gFTP is a free multithreaded file transfer client for *NIX based machines.

Azureus is Java BitTorrent client.
Deluge BitTorrent client.