If you are well known and you use Facebook, you may want to maintain some degree of seperation from your personal and public life. To do that, you can try different approaches. One of these is to use everyday Facebook for your personal stuff and Facebook Pages and Facebook Groups for your public side. **
To understand the difference, check out this Facebook Tip: What’s the Difference between a Facebook Page and Group?
(** Unless you want 1000s of “friends” to manage. Hint: you don’t.)