I will be giving away 2 beta-keys tomorrow at 1:00PM PST.
One for Path of Exile and the other for Tribes Ascend (Thanks Matais!).
You obviously won't have time for both (keys go fast), so make sure you pick the one that's higher priority for you. :)
For the Tribes Ascend key, I don't know how exactly to register it since I haven't done it myself. I assume that you'll need to create an account with Hi-Rez Studios, and then register the key there. So, you'll have to do some leg work and prepare for tomorrow.
I'll be doing another simple random letter shuffle for both keys. Good luck!
* UPDATE:
Tribes Ascend Key: F3F75A74511AFD4B42AE7C2B1
Apparently, these are pretty easy to get a hold of. So, if you have any spares that you want to give away, just post them as a comment here.
Path of Exile Key: FRSQJ-5G2PN-HBKGV-3____
Letter Shuffle: P M F P
If you win and get a friend invite, the people here would really appreciate it if you throw it back for another contest. :)