B - ResearchGate

Nicholas D, Clark D, Herman E. ResearchGate: reputation uncovered. Learned Publishing 2016;29(3):173-82
(10.1002/leap.1035)

ResearchGate (RG) is a scholarly social network possessing, probably, the most comprehensive set of reputational metrics and has the potential to supplant publishers as the prime deliverer of scholarly reputation. This study aims to assess RG's reputational facilities and its conclusions are: RG provides a rich, albeit confusing, amount of reputational data; struggles with the deployment of alternative, engagement metrics, such as Q&A and follower data, which can lead to reputational anomalies; employs usage data in an especially effective manner; and leads the field in the way it engages with the scholar.
http://onlinelibrary.wiley.com/doi/10.1002/leap.1035/full

Comments