Just like Twitter and Google+, Facebook finally incorporated Hashtags

Now you can add hashtags to your posts on Facebook. This depends on the users whether they like this or not. Anyways you can ad these tags and may be there will be the popular tags of the day which you can see on your home page.

Twitter and Google+ have also hashtags. Facebook is doing many changes now days. Firstly with the new hompw page and timeline look and now by incorporating hashtags.