(If you're Jewish this is called "Jewish Geography". I didn't make up the name. If you're queer I've never heard anyone name it (just do it sometimes -- usually incidentally, not systematically), but if you wanna make the name actually make sense you can try calling it "Queer Network Topology" maybe.)
(... if you're doing it as part of trying to build diasporic politics in the global Hacker community, you HAVE to call it "Hacker Network Topology", I think. Or possibly "Wait do we know anyone in common? Can we play Social-BGP for a bit?")