I've been writing a Python library called LJMinion whose first task is graphing LJ relationships. ETA: Coders, LJMinion code is available
here.
Do you want me to do one of your journal? Basically, it makes a graph of people you've friended who have friended each other. You can see the different LJ groups you're a part of! (This is an open offer, unless I get totally zerg rushed. I'M LOOKING AT YOU
lj_nifty.) When I tell you your graphs are done, you can find them
here--yours will start with your username.
The size of the dots is scaled to the number of mutual friends that person has. So, people with a BUNCH of friends will be bigger than people with fewer.
Click on any image to see it in full size.
Close ups: