Engage.com has been around for a bit, but is starting to gain some traction. Similar to RentWiki, Engage.com aims to use peer recommendations as a better vehicle to identify a potential mate. All the other dating websites have a solitary experience, contrary to real life when you usually get an introduction from a friend.

What about a peer recommendations website for friends? Unless this already exists, I think Facebook should provide you to view all friends of friends in a city, similar to the way Linked In connects you with business contacts.