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Look what curiosity found... ta corrupt core from Portal 2!

Valve World - Fan made crossover of all Valve games

Who do you think would win in a Valve Battle Royale? Find out!

Portal fans... your turn!

Just a real life steampunk version of the portal gun dedicated to the Portal game series made by Valve.

Portal speedrun - under 10 minutes - No cheats!

This is a single-segment (all in one shot) speedrun of the PC version of Portal, done by Maciej 'groobo' Maselewski on August 10, 2008. Scripts and major glitches are used, but the actual game itself has not been modified, cheated or hacked. I snipped out all of the elevators and loading screens, so as not to bore you ;) 

 Speedrunner: Maciej 'groobo' Maselewski
Time (including elevators): 13:06

Read up about the glitches here: http://speeddemosarchive.com/Portal.html#PCscripts
Author's comments: http://speeddemosarchive.com/Portal.html#PCscriptsskipsSS
Watch the full video: http://speeddemosarchive.com/demo.pl?Portal_PC_SS_1306
Watch some more speed runs here: http://speeddemosarchive.com

Left 4 Dead 2 / Portal 2 - Amazing Easter Egg - Must See!

In this video MasterOfAudioSurf showcases this mind blowing crossover Easter egg of Portal 2 and Left 4 Dead 2 from the addon campaign of Suicide Blitz.

To download the addon campaign:
http://www.l4dmaps.com/details.php?file=9754

Portal / Half Life - Crossover - Conspiracy theory - FANS MUST SEE THIS!

I am a big fan of the Half-life / Portal universe, but as everybody, I am curios what will happen in Half-life 3 / Portal 3. After hours browsing on the internet I found this video the most logical explanation that sets up a crossover game for Portal and Half-life sometime around 2013-2014.

http://www.youtube.com/user/RightHandARama

Beyonce - If I were a boy in Portal 2 style

http://www.youtube.com/user/Harry101UK?feature=watch