"In the social media world a number of trends are dictating how, why and
where money gets spent–trends that will push the industry past the $2
billion mark in 2011, according to eMarketer's projections.
Not surprisingly, the biggest beneficiary of the current euphoria around
social is Facebook, with several estimates now pegging the company's
2010 revenue at better than $1 billion. That growth is being fueled in
part by what some advertisers see as competition to scoring prime advertising space on the site."
Read more at www.forbes.com