This document summarizes and reviews two social networking/bookmarking tools: Diigo and LinkedIn. Diigo allows users to bookmark websites, add annotations and notes, and share content. It provides a toolbar to save, share, like, or bury sites. Diigo was useful for finding lesson plans on digital citizenship. LinkedIn is a professional networking site that allows users to create profiles, connect with contacts, and share resources. It has groups for topics like response to intervention that could help with classroom challenges. Both sites received positive reviews for their social networking and annotation/bookmarking capabilities.