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.
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social networking websites
with the title Just like Twitter and Google+, Facebook finally incorporated Hashtags . You can bookmark this page URL https://mytattoossy.blogspot.com/2013/06/just-like-twitter-and-google-facebook.html. Thanks!