“Add Me” by Chumbawamba. Title speaks clearly for the theme, but the band also gives a pretty good explanation about cyber-friendships.
Facebook has managed to change the meaning of “friend” more within three or four years than the one and a half thousand years the word has existed in English. For some other languages, we can add a few more millenia for the word’s respective counterparts. A friend on Facebook is simply someone you add, provided the other party agrees. However, the breakup is much simpler.

