Academic social networking sites like Academia.edu, ResearchGate, and Mendeley allow scholars to create profiles, build networks, participate in discussions, and engage in peer review. Some scholars use the peer review features on these sites for faster feedback compared to traditional journal review, which can take 12 months. However, critics argue that academic social networks lack transparency in peer review and are not a replacement for institutional repositories. Libraries can help address these issues by providing publishing and peer review services, increasing use of repositories, and developing open peer review plugins for repositories.