Comment by recoiledsnake

PC loses to Web ads is more likely.

I think Google's got better at getting people to click on ads. For example, one of the following is a search result and the other is an ad. How many people can differentiate between them on various monitors?

http://i.imgur.com/Wmdd0.png

I remember the time when Google differentiated itself by clearly marking ads, now it's no longer true for high value keywords.