Altmetric measurements derived from the social web are increasingly advocated and used as early indicators of article impact and usefulness. Nevertheless, there is a lack of systematic scientific evidence that altmetrics are valid proxies of either impact or utility although a few case studies have reported medium correlations between specific altmetrics and citation rates for individual journals or fields. Finally, the coverage of all the altmetrics except for Twitter seems to be low and so it is not clear if they are prevalent enough to be useful in practice.
F. Kooti, N. Hodas, und K. Lerman. Proceedings of the eighth International AAAI Conference on Weblogs and Social Media, Seite 266--274. AAAI, AAAI Press, (Juni 2014)
X. Wen, Y. Lin, C. Trattner, und D. Parra. Proceedings of the 25th ACM Conference on Hypertext and Social Media, Seite 285--290. New York, NY, USA, ACM, (2014)
S. Wu, J. Hofman, W. Mason, und D. Watts. Proceedings of the 20th International Conference on World Wide Web, Seite 705--714. New York, NY, USA, ACM, (2011)
E. Bakshy, J. Hofman, W. Mason, und D. Watts. Proceedings of the Fourth ACM International Conference on Web Search and Data Mining, Seite 65--74. New York, NY, USA, ACM, (2011)
E. Ferrara, O. Varol, F. Menczer, und A. Flammini. Proceedings of the first ACM Conference on Online Social Networks, Seite 213--222. New York, NY, USA, ACM, (2013)