Interestingly in the last few months researchers started thinking about possible alternatives to Google’s pagerank algorithm. Given the rich information coming from trusted peers in social networks such as Facebook and Twitter, researchers started designing alternatives based on the links shared in these platforms as well:

– Facebook EdgeRank: http://techcrunch.com/2010/04/22/facebook-edgerank/

– Twitter Tunkrank: http://thenoisychannel.com/2010/04/07/go-tunkrank/