Confused Of Calcutta writes:
Anants written a post about Orkut Crush which makes fascinating reading. Maybe its been happening across many social networking sites, and I just havent seen it; possibly because I havent used the looking for someone facilities.
Orkut Crush allows person A to register a crush on person B, and vice versa; the registered information is only provided to the matched pair when both sides signal.
So at a level of abstraction it allows a signalling of intention, done in secret, with the intention only revealed to the other party when matching conditions are met.