Linktomy.info (Link to My Info)
Fairly simplified approach to supplying a central location to link to all of your online social networks.
Instead of giving out 20 different links, fill out the details on your profile and give out one link to your linktomy.info profile.
No obtrusive scripting, advertisements, or other things getting in the way. Just your information in a centralized easy to navigate location.
22 networks supported so far, adding more in the coming month.