Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Robin D. Burke, Jonathan Gemmell, Andreas Hotho, Robert Jäschke. Recommendation in the Social Web. AI Magazine, 32(3):46-56, 2011. [doi]
Abstract is missing.