If you had a chance to read my last post on SocialRank, you’d know that SocialRank is the new PageRank. Not in the sense that PageRank is dead, but rather that SocialRank is what PageRank was meant to do – measure content authority and creditability.

The difference between the two is that PageRank is the measurement of URL popularity. It started out with Google seeding a few authoritative URL’s which then they passed a portion of it’s rank to other urls through links. SocialRank is the measurement of human popularity. It too must be seeded, then passed through social interactions such as follows, comments, tweets, likes, etc. SocialRank likely won’t fully replace PageRank, but rather it will overlay a social graph on top of the link graph to personalize results and reduce spam.