privacy

Is Facebook Getting Too Invasive?
Is Facebook Getting Too Invasive?
I'll be completely honest.  I got a little freaked out the other day when Facebook suggested that I may know someone.  Let me explain.  This person was someone who I had just sent a single e-mail to, and had never saved their contact information, phone number, or anything.   We have no mutual friends, and live 120 miles apart. How would Facebook know that I have been communicating with this person