In response to Jude and Eric, I decided to check out my facebook friend network using Nexus.
Nothing too surprising here, except what isn’t shown. I have “real” friends who don’t use facebook, but actually serve as connections between clusters. I also have friends who would connect clusters, but only show up in one because they made a conscious decision not to accept friend requests from any high school classmates. The only obvious individual that stands out is my bee-you-tee-full sistore, who connects the fam, high school, and undergrad.