Social Ads on Facebook is a feature that tailors ads to your friends. For example it might tell your friends when you have rated a movie 4 stars. Here’s how to disable this feature that some may find intrusive.
1. Login to your account.
2. Click privacy in the upper-right corner.
3. Click News Feed and Mini-Feed.
4. Click the Social Ads tab.
5. Set the drop-down menu for Apearance in Social Ads to No one.

6. Click Save Changes.

[...] I get a lot of this on my facebook, even with social ads turned off [...]