what does it mean if I unfollow someone on facebook ?

[Ikel]

And if I do unfollow someone will they be notified ?

[Robyn]

They won't be notified, you will still be friends with them on Facebook, the only change is that all of their posts will be taken off of your main screen or "Facebook wall" so you won't be able to read their statuses etc. but you guys will still be Facebook friends and they will have no idea that you "unfollowed" them.

[Avimael Leon]

Means you would not see he's post no more on fan page etc...they will not get a notice if you unfollow