Almost every popular website has a Facebook “Like” button. Millions of people press that button everyday, unaware of the full consequences that Facebook has recently implemented.

A post on the Facebook developer’s blog highlighted the ability for site owners to directly post in user’s newsfeeds.

This option for site owners, launched at last year’s Facebook f8 conference is not a new feature, but not every publisher knows about it. It allows admins to engage a subset of their audience with highly relevant updates, and the worst part is that users have almost no control over managing this incoming information.

For example, if you Liked a story on a website by pressing the Like button you’re not only sharing the content on your wall but you’re also automatically subscribing and giving permission for future newsfeed updates to site owners. This happens every time and anywhere you Like something. Read more at thenextweb.com