Well well, I have found yet another system to link blogs together, Tangent.

Apparently this system uses random links to create an actual web, on the web. I am not to sure of the implementation, you mouse over links and are given a .div that holds a number of links to random sites that are determined by preferences you set.

I like the idea of this. if not the implementation.

But go and look into it yourself and make a decision.

And just for informations sake, this link is to Hixie's discussion of Pingback vs. Trackback.