Moli lets you create a meta-profile that allows you to segment and sort various aspect of your personality. Essentially it lets you use one account to manage multiple profiles on social networking sites. Technology Review has a solid write up of the service:

Directed at users who are trying to balance personal and professional networks, Moli offers multiple profiles–with different privacy settings–within one account.

“As we get a little bit older in our lives, none of us have the time anymore to spend going to 5, 10, or 15 different sites,” Balint says. “So what we tried to do was combine the functionality into one account, so that you can go there and do everything that you need.”

Users of Moli can set up as many profiles as they want, and they can choose to make them public, private, or hidden. Anyone, whether he has signed up for Moli or not, can search for and view a public profile. A private profile will show up on searches, but to access it, a user must be a member of Moli and must have approval from the profile’s owner. A hidden profile is invisible in searches and can only be viewed by people invited by the owner. Balint says that users are free to set up multiple profiles of various types, with the requirement that they must designate at least one public profile.