Facebook to become 2nd largest digital ads seller in US in 2013

Facebook is set to become the second largest seller of digital advertisements in the United States in 2013 as a result of its mobile advertisements.

According to figures released by eMarketer, the social media site is expected to sell 3.17 billion dollars in ad dollars this year.

With mobile ad spending increasing quickly this year, Facebook surpassed its competitors coming second behind Google in ad sales.

EMarketer report cites the general growth of mobile as the source of Facebook's rise, CNET reports.

Overall, mobile ad spending is expected to make up 22% of all digital advertisement spending in 2013 compared to only 3% in 2010, eMarketer said.

Facebook's share of global mobile revenues is expected to jump from 5.34% last year to 16.91% this year, according to eMarketer.