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@article{eysen,  Author = {Brody, Tim and Harnad, Stevan and Carr, Leslie},  Date-Modified = {2012-01-23 19:07:47 -0500},  Journal = {Journal of the American Society for Information Science and Technology}, Medical Internet Research},  Number = {8}, {4},  Pages = {1060--1072},  Title = {Earlier Web usage statistics as predictors {Can Tweets Predict Citations? Metrics  of later citation impact}, Social Impact Based on Twitter and Correlation with Traditional Metrics of Scientific Impact},  Volume = {57}, {13},  Year = {2006},  Bdsk-Url-1 = {http://dx.doi.org/10.1002/asi.20373}} {2006}}  @article{Eysenbach2011,   Title = {Can Tweets Predict Citations? Metrics of Social Impact Based on Twitter and Correlation with Traditional Metrics of Scientific Impact},