Remove the website from the back of the cards and you're golden. You can advertise the hell out of yourself on a deck, but here is where it's appropriate to do so:
- Bottom of tuck case
- Ad card
- Jokers/Ace of Spades (no ",com" though)
Also, you do realize people will think this is a deck dedicated to Half-Life/Portal, right? I don't know if you did that on purpose or not. The color scheme is what does it more so than the vector aperture art.
It's really nicely done, though. I can't wait to see the faces like Mollusk said.