5.6 Wiki, Google etc. ThinkFold. A.nnotate.com: Upload, Annotate, Share. Online document review and collaboration - PDF, Word and HTML. Origramy - Flash graph editor/viewer component. CoSketch.com - Online Whiteboard Collaboration. Visualize Everything. Online Diagram Software and Flowchart Software - Gliffy. Collaborative Mind Mapping & Information Sharing | Spinscape. Mind42.com - Collaborative mind mapping in your browser.
Bubbl.us | brainstorm and mind map online. Draw Diagrams Online using Collaborative Diagramming Tools.