Even before Facebook offered its stock IPO, it was getting more media attention than Google.
According to HighBeam Research, Google received more media mentions during the first four years of Facebook, 2004 through 2008. But in 2009, Facebook took over with 27,000 mentions and so far this year, Facebook's media hits have grown to 42,000 compared with Google's 13,000.
As a social networking website, Facebook is the most popular of any of them. But how much is their advertising really worth? And does it compare with Google's? An advertiser can start out fairly cheap with either. The more clicks by users, the more it costs.
Here's a blog post regarding the two sites' advertising.
Here's an interesting blog post comparing the two internet giants.