Twitter is beginning to find ways to profit from its 100M+ active users: eMarketer estimates the...

|By:, SA News Editor

Twitter is beginning to find ways to profit from its 100M+ active users: eMarketer estimates the microblogging platform's ad revenue will more than triple this year to $139.5M, and increase another 186% by 2013, to $399.5M. However, this is still well below the $4.27B in 2011 ad revenue estimated for Facebook.