<p>Mediathread is an open-source platform for exploration, analysis, and organization of web-based multimedia content. It interoperates with a variety of image and video collections (such as YouTube, Flickr, library databases, and course libraries), enabling users to lift items out of these collections and into a scholarly analysis environment.  In Mediathread, items can then be clipped, annotated, organized, and embedded into compositions and other written analysis.</p>