Sauerbraten (a.k.a. Cube 2) is a free, open source, both multi & singleplayer first person shooter game. It was built as a major redesign of it's predecessor the Cube by Lee Salzman, Wouter van Oortmerssen (the original creator), Mike Dysart & Robert Pointon. Just like in the original game, the main emphasis falls not on the pretty graphics & load of functions, but on seamless and dynamic in-game map/geometry editing. In the latest version of Sauerbraten gamers playing together online can even co-edit a level at the same time.
Jing is a very nifty and user friendly screen capture application from TechSmith. You can use it to snap a picture or even record a video of your computer screen and then share the media with whom every you might like over web, email or IM.
Electric Sheep is a free & open source screensaver created by Scott Draves. It is by far the most beautiful and captivating screensaver I've ever came across. It not only generates amazing images, but it does it "on the fly". When the computer "falls asleep" it starts communicating and collaborating with thousands of computers around the world morphing computer animations known as "sheep". The result of this constant transformation is what some call a collective "android dream", an reference to Philip K. Dick's novel "Do Androids Dream of Electric Sheep?".
Mozilla is a global community project providing open and innovative internet products. Firefox is one of the leading internet browsers - an obvious choice for many users around the world. It provides all the basic features you need to surf the internet and so much more. If you are not using it already, download Firefox 3 and give it a try.
Pidgin is an tiny application that allows you to connect with all your friends through most of the chat networks in one place. It supports AIM, MSN, Yahoo, Google Talk, IRC, QQ, Sametime, Zephyr, Bonjour, Groupwise, SILC, XMPP, Gadu-Gadu, ICQ, MySpaceIM, SIMPLE (upphhh - that's a lot), and it can support many more with plugins.
Adium is a free and open source instant messaging application for Mac OS X. Adium allows you to chat with all your friends using different chat services at the same time. Among others, it supports: AOL Instant Messenger, including ICQ and MobileMe, MSN Messenger, Jabber, including Google Talk and LiveJournal, Yahoo! Messenger, including Yahoo! Japan, and Bonjour. It is also compatible with iChat, MySpace IM, Facebook Chat, Gadu-Gadu and more.
GIMP means GNU Image Manipulation Program. It was first released in 1996 by two students from Berkeley University and it has been getting better and more widely used ever since. It offers all the basic and many of the advanced features of applications like Adobe Photoshop: layers, channels, paths, different painting tools, etc. Download the free application from www.gimp.org.
Today something for the more graphically advanced. I am not a Photoshop pro, but I've noticed playing around with brushes, textures and backgrounds is very enjoyable for me. They allow me to create compositions 100 times easier and faster and at the level I would never be able to achieve by using just the defaults in Photoshop. Download hundreds of free Photoshop brushed and have fun.