Amazinzay.com

So for anyone who played Portal, this is an interesting development. Three french programmers who liked the game but thought it was too short decided to make an addon to the game. Hence Portal Prelude was born. I have been really impressed with it and would highly recommend anyone who liked the original check it out. It is set to be released on October 10th. It is totally free, assuming you already own portal as it uses many resources from the original Portal.