well, I can see a synergy here. Google used to harness the data other people put in the Net. Google uses links to evaluate relevance of pages. Now, blogers are the most active people who are putting their opinion on the web all the time. If Google could make them input more then just links and words, that would gave whole new impulse to PageRank-model. But to do this Google has to introduce new standard tags or something in the blogs. Once they bought Pyra , they can do it!