There is nothing really special about Facebook except for the fact that it is popular. A lot of other programs, web sites etc.. have the same features, they just aren't as popular. Why is one dance club have a waiting line around the block while the rest are empty? Is it because the beer tastes better at one bar vs. the other? Of course not. It's because it's popular. Why is Facebook popular? Does anyone remember being invited by 10 or 20 friends before they had a facebook account? I do. They got people to give up their email lists so Facebook could spam everyone on it. Kinda sounds like a virus. lol