Ask YC: How do you want your advertising?

As a planner in the interactive ad business, I'm curious what is the desired relationships between advertisers and hackers (and other start-up types). Do you care what brands are on your sites? Do you want collaboration, or just a check? Partnerships or straight-banners? There is plenty of noise regarding Web 2.0 in Adland, but much of it is presumptuous and ill-informed. I'm curious to hear a hacker perspective regarding what is wanted from advertising (besides money, naturally.)