This document discusses various social media tools that can be used to build and maintain communities of practice, including SlideShare, VoiceThread, mind mapping, blogging, Google Docs, and Dropbox. It provides overviews and examples of how these tools support collaboration, sharing of information and resources, and curation of content among community members. The tools allow for interactive sharing of slides and videos, collaborative mind mapping, hosting blogs and discussion, real-time document editing, and cloud-based file sharing.