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Portal Motivational Recruitment Trailer
On May 12th, millions of new recruits poured into the Aperture Science Enrichment Center for Portal testing (1:13)
Celebrating the launch of the Mac version of Portal, Valve has released a new video for this popular game. Gamers who download Steam between now and May 24th will receive a free copy of Portal, for PC and Mac.
Website: http://www.steamgames.com/
