What a neat piece of visualisation. http://virgindev.saintdigital.co.uk/flash/VirginEye.html
This application provides an overview of all web comments, articles, press mentions about the Virgin group of companies.
Although it sweeps a little fast for my liking and it wouldn't work for smaller entities without as much press I think there are definately possibilities of implementing something similar for personal APML tracking.
Whats APML? :) ...... what am I google? go find out and tell me what you think.