As can happen in a month whose name contains an "a", "e" or "u" :-), Facebook has once again made changes to its privacy policy and practices. And, as always we all have two choices: accept the changes (and adjust our settings and practices appropriately), or; leave Facebook.
Of course most people won't leave Facebook, and if anything they will add more users than those that leave.
As I look through the changes (see Facebook's notice here with links to the details), I think there are three things to know...