What you think about this:
Go to game site authorities like IGN, gamespy or similar.
Find hot games.
Find top games.
Find upcoming games.
Go to gametrailers and check if they are popular and have good ratings.
Now gather what info is there: walkthroughs, cheats, trainers, demos, casts and similar things.
Now you can check and make youtube vids based on this. For example : modern warfare 3 trainer or moder warfare 3 level walkthrough.
You can put some loot after CPA like "game art" or "special bonus".
Just my couple cents.
What you think?