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Every wonder about how you affect your friends in online networks, or how you are impacted by them? Check out this article from Edge:
Edge: SOCIAL NETWORKS AND HAPPINESS By By Nicholas A. Christakis & James Fowler
We found that social networks have clusters of happy and unhappy people within them that reach out to three degrees of separation. A person’s happiness is related to the happiness of their friends, their friends’ friends, and their friends’ friends’ friends—that is, to people well beyond their social horizon. We found that happy people tend to be located in the center of their social networks and to be located in large clusters of other happy people. And we found that each additional happy friend increases a person’s probability of being happy by about 9%.
(Via Unquiet Desperation.)