Facebook is constantly changing the application. I would make a bet that most of you reading this article already have a Facebook account. You’re on it more than once a day and you’re always checking your newsfeed or stalking your friends. Do you know that even though you’re on Facebook all the time, they are continuing changes to the application, many of which you do not see or know about? For example, did you know that recently Facebook changed your personal email on your Contact Information which is part of your profile to their email system @facebook.com? So now if friends on Facebook wanted to find your email on your profile, their emails would be sent directly to your messages tab instead of the email address that you designated when you created the account.