A friend sent this to me through StumbleUpon today, and I thought it was worth sharing – it is an attempt at representing all of the various types of relationship models regularly engaged in by people. The comments around the diagram make it much more fun and understandable 🙂
This is third or so version of the informatic, as its creator (Franklin Veaux) kept adding new relationship models as he thought of them, and then started adding the comments. You can see all of his blog posts over in live journal:
Franklin has updated it again, you can see the latest version on this post: http://tacit.livejournal.com/333842.html