I have about 7 invites left that I don't need, so PM me your email address, and I'll get them out to the first ones to message me. If I don't respond, it's because I'm out or you didn't provide email address in the message.
There is also a free giveaway on the Alienware gaming site (about 47,000 keys
available at the time of this post), so head over to there if you want and they might have some left by the time you see this post.