Just saw this on twitter. Linkedin can create a nice visualisation of your network. (http://inmaps.linkedinlabs.com). My visualisation turned out pretty OK:
It correctly identifies four main groups.
Regarding my (former) workplaces and their connection to my python/django/plone cluster (the blue one on the right), it is nice to see a difference:
My name is Reinout van Rees and I work a lot with Python (programming language) and Django (website framework). I live in The Netherlands and I'm happily married to Annie van Rees-Kooiman.
Most of my website content is in my weblog. You can keep up to date by subscribing to the automatic feeds (for instance with Google reader):