It's an interesting start but really I think the most helpful thing you could do is list what sponsors have such content, for which sites, how much of each, and the last time it was updated. I really get tired of searching sponsors in order to try to find who actually has decent promo content I can use and who doesn't. Usually you don't even know what they really until you sign up. Often they had lots of content for a few sites but for the one you wanted to promote they have nothing. Or you are looking for movie galleries but all they have is 1000 photo galleries.
