Remember Classmates.com? Arguably the first-ever social networking website it "connected" each of us to the people we went to school with over the years. Plagued by clumsy and poorly executed "Web 1.0" thinking, and an absolutely atrocious pay-to-play business model, Classmates.com could have been Facebook. Instead, it unintentionally ushered in many thousands of social networking start-ups that, as the market shook out, have become "Facebook and everyone-else-who-doesn't-matter-much-anymore." Still, there were plenty of steps between here and there.