I lensoll mine too - The early ones are lensrolled to most of the others that have lenses, but the later one is only lensrolled with my other 2.
I think in theory its meant to create a simple link from the lens a browser is reading to other lenses in the eBid circle - which in theory should broaded our ebid lead or root system to lure the browser back here. Don't know if it works in practise, but the more we're all spread out over squidoo and linked together, and everywhere else for that matter someone is bound to bite.