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Hello Matt, a recent article of Danny Sullivan suggests that Google uses Twitter and Facebook links as a ranking signal. Can you confirm this? Can you elaborate a little bit more on this? -WebSEOAnalytics Read the article: searchengineland.com Have a question? Ask it in our Webmaster Help Forum: www.google.com Want your question to be answered on a video like this? Follow us on Twitter and look for an announcement when we take new questions: twitter.com More videos: www.youtube.com Webmaster Central Blog: googlewebmastercentral.blogspot.com Webmaster Central: www.google.com

Google Tech Talks May 22, 2007 ABSTRACT One of the main goals of astrobiology is the search for another type of life in our solar system. The planet Mars, Europa, one of the moons of Jupiter, and Enceladus one of the moons of Saturn, are the most likely targets for this search. With only one example of life on Earth it is not too surprising that we lack a precise definition of life or a clear strategy for how to search for it on other worlds. Studies of the limits of life and life in extreme environment may help us develop a search strategy for life on other worlds. Fossils are not enough. We will want to determine if life on elsewhere was a separate genesis from life on Earth. For this…

Video of Google Factory Tour of Search including announcement of Google Health