Nexus, by Ivan Kozik, lets you explore your Facebook social network and find out what your friends have in common. Nexus kind of caught me off guard, because it actually does a decent job of showing you commonalities. I was expecting something like Friend Wheel or Friends Density, which are Facebook bling more than anything else.
On the other hand, Nexus is interactive and shows you how your friends are connected based on groups and interests (e.g. movies, books). The darker the line between two friends, the more they have in common. At a glance, I could see some friends, who I know are very social, right in the middle of things with a lot of connections while some of the not so social on the edges. I also noticed some of my random Facebook friends in the boonies with no connecting lines.
You choose between the spring and radial layouts and can choose the dark or light background.
[via Info Clarity]