This document lists and provides brief descriptions of various free web-based tools for communication and collaboration. It includes tools for video and audio hosting, editing and annotating videos, adding subtitles, creating slideshows, recording and podcasting audio, collaborating on documents and images, conducting synchronous and asynchronous discussions, sharing files and presentations, and checking for plagiarism. The tools cover a wide range of functions including storage, video/audio editing and hosting, collaboration, communication, and document formatting/conversion.