I'll be honest, I hate all ads, regardless of how good they are. I think it's creepy and fills my mind with things I do not want it to be filled with. For me, the entire debate is silly because it's my screen -> my decision what appears. I think it barely matters how good the ads are. I've only seen one single website that did ads right (they were perfectly embedded into a mosaic pattern of site functionality, things like a little tile with the coca cola writing). (EDIT: Okay, news.ycombinator.com also does it well with its inline job ads. See, I didn't even think of it as an ad, that's how nicely it's embedded.) The problem is that people used to use the internet to exchange files and information that was then locally stored on each PC. Now, you go to youtube, listen to a song, and 20 minutes later you download the entire video again if you listen to it (if you closed the tab inbetween). That stuff adds up and of course everyone is reluctant to pay that bill. The solution is going back to a decentralized download-culture like it was in the 90's. Storage space is incredibly cheap. Nobody has to pay that bill of transferring the same things over and over and over again.