Facebook Reveals Ad Plans For Instagram, While Twitter Says Vine Will Stay Ad-Free
Posted: 10/4/2013  |  By: Alex Kantrowitz | Advertising Age
Four months after introducing video, Instagram took the natural next step today, telling its over 150 million users their streams would soon include ads too.  

The company, acquired by Facebook for $736 million in 2012, announced the development in a short blog post it published
Thursday afternoon. The ads, the post said, will be introduced slowly and added no guarantees if that would continue after an initial phase.