[NYT] Social Networks: Will Users Pay to Get Friends?

"But as the popularity of [social networking web] sites has taken off, the big question for investors in new technologies is whether social networking sites can ever make a lot of money by connecting friends of friends in mini-networks of trust, whether for dating, business or maintaining acquaintances. For many, the buzz over social networking sounds a lot like vintage Internet hyperbole from the late 1990's."