If I'm looking for something specific I'll follow ads if they look like they'll get me what I want. If I'm just surfing around then I rarely if ever click on ads.
I find myself commenting more on the placement and usage also. I have also found myself going directly to sites AFTER i have googled them, as to save the advertiser the PPC cost. Anyone else do that?
Yes if the ads are relevant to the content and I'm looking for more information or alternatives. Sometimes if I am looking for a commerical product, I would go to Google and browse the advertisers from Adwords instead of the actual search listings.