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.
In the following post we look at the data and find out who has the most reciprocal conversations on Twitter with 10 geek heroes - from the founders of big sites like Digg, Reddit and StumbleUpon to nonprofit geeks working to challenge injustices. There's something a little uncomfortable about being able to see this information. Fact is, though, it's part of the nature of this powerful new system of communication. We expect that data parsing like this is only the beginning.
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