Helping the world find the best input from an audience of any size. Let your audience decide. Get to know your audience by letting them decide which questions, suggestions or ideas interest them most. Everyone's voice is heard. The voting box at the top of page focuses attention on submissions recently added and on the rise, making it simple and easy to participate. Be creative. Include people in your preparation for lectures, interviews and hard decisions or work together to organize feature requests and brainstorm new ideas.
Video Chat with up to 20 people for free. TokBox requires no download, only an internet connection and a webcam. Sign up is free and takes just seconds.
GanttProject is a cross-platform desktop tool for project scheduling and management. It runs on Windows, Linux and MacOSX, it is free and its code is opensource.
Founded in 2004 we're a not-for-profit organization promoting open knowledge: that's any kind of information – sonnets to statistics, genes to geodata – that can be freely used, reused, and redistributed.
Basic service is free and lets you create up to 2 forums and 2 sub forums. You also get 100MB for file attachments (like pictures uploaded by users). You can also pay $25 to $75 a month for more storage space and the ability to create and manage more forums.
CommentPress is an open source theme for the WordPress blogging engine that allows readers to comment paragraph by paragraph in the margins of a text. Annotate, gloss, workshop, debate: with CommentPress you can do all of these things on a finer-grained level, turning a document into a conversation. It can be applied to a fixed document (paper/essay/book etc.) or to a running blog.