How many Facebook users in the world NOW?

How many Facebook users in the world NOW? Facebook Facebook facebook how to use facebook in china~ _______will go together with us for the picnicA.How many friends of JOan's.B.How many JOan's friends how many how many, How to use Facebook for free in China 、 Do you know how to use facebook?写一篇短文 how can i open facebook in china free? HOW DID THEY EVER MAKE A MOVIE OF FACEBOOK怎么样 who can tell me how to use FACEBOOK? May I know how I can hack facebook account ? who can tell me how to sigh up the facebook? How dose our skin help us ?List as many ways as possible our skin protects us.用英文回答 how many how Mrs Jenny gave us ( ) on how to learn English well.A,some advice;B,many advices