Yep, it's a tad on the geek side, but still, worth saying - SNIP - All we can do is understand the concepts and the historical signifigance therein. What is important about this exercise is that we have another glimpse into not only behavioural data but link valuations as well. But link related signals aren't really a new thing (around here) as we've looked at a few approaches including temporal data, phrase based IR, page segmentation and even Personalized PageRank to name a few.