This intriguing paper appears on the academic networking site, Academia.edu - it's by Mats Melin and was published by the Elphinstone Institute:-
Author: Mats Melin
Researchers will probably be aware that there are a variety of social media networking sites where scholars can share details of their publications and research activities, and engage in useful discussion with people at other institutions. Academia.edu and ResearchGate.net are just two of them. Publishers like Sage and Emerald also try to encourage a sense of community amongst their scholarly authors.
It's fair to say that some people aren't keen on Academia and ResearchGate because the statistical information could be used for commercial purposes. Nonetheless, as you see, these websites are useful to supplement what individuals post on their institutional repositories or personal websites, because of the networking angle!