The process of making Facebook friends promises to get even easier (and possibly a lot more superficial and promiscuous) with the invention of the "Buddy Cup," which incorporates a microchip and QR code to let you friend someone simply by bumping glasses with them.

With parental concerns about privacy and predators unlikely to go away anytime soon (and kids' aversion to being seen with their parents an eternal truth), there is a lot to recommend private social networks intended just for families. Recently two more social networks for families launched: SocialParent and Save The Mom.