Facebook appears to be testing Page-Like Sponsored Stories in a mobile module called “Pages You May Like.”
With this new module, the social network is showing some users two Sponsored Stories at a time. This increases Facebook’s mobile inventory, but it’s unclear how it might affect clickthrough rates. Two ads are now competing next to each other, but the unit includes a large thumbs-up symbol. It’s unknown whether this format is being tested only for premium advertisers working with Facebook directly or whether any mobile Sponsored Story is eligible to be shown here.
Read more details on this new feature at insidefacebook.