Your description of Tinder is kind of the reasonable elaboration of Hot or Not. If they judged you hot, and you judged them hot, and you both paid, you would be given contact info (as I recall). Of course, you could just sit there and rate people for hours and it didn't do the best job of limiting things regionally. Also, no names, no biographies, nothing. 1 photo, god speed. OKCupid is the logical progression of eHarmony rendered free. eHarmony was Match but more so. What was impressive about Match backintheday is that your average male sent out maybe 3 messages a night. Your average female sent out zero because even the not-so-attractive ones would get 70-80 messages a day. A friend of mine (whom I would never date) was a 100% match for me and got 400 messages a week; her roommate (who I almost dated) was a 3% match for me and got 800 messages a day. I've seen the OKCupid posts. They're interesting. I like how they took down the one about how much eHarmony sucks when eHarmony bought them.