SOMEONE OUT THERE IS IMPERSONATING ME AND SENDING --GOD KNOWS WHAT TO MY FRIENDS

I don't know what is going on with THIS Ipad thing; in fact I never heard of it--someone out there is impersonating me, this someone is out to do a character assassination job on me--the one reason I can think of is they don't like my political opinions--well tough, live with it--I will continue to make my opinions known; like them or not. I received some strange comments from my friends on this "Ipad" issue; something I know nothing about. Can someone enlighten me on this subject--I will really appreciate it, I am not a facebook expert. Someone suggested I change my password--I will do that pronto.