I know, I know, we all hate advertising in all forms.
But, we all love Giant Bomb.
Thus, I have personally decided to click on ads occasionally just to get those stats up. I clicked on a few of the Gears 2 ads. It took me to the Xbox.com Gears 2 page. It literally only took a second of my time, and somewhere out there a number in a database went up, and someone became more inclined to give Giant Bomb money.
Consider this a sort of grassroots fundraising campaign, but instead of donating directly, we're donating indirectly.
Do what Jayge says:
"Click on them once or twice a week, but no more. Most ad providers have anti-abuse clauses written into their little agreements. To violate that would cost GB their ad revenue."