PUBLIC MARKS with tags collaborate & online

CoSketch is a multi-user online whiteboard designed to give you the ability to quickly visualize and share your ideas as images. Anything you paint will instantly show up for all other connected users. -One click to save an image permanently (bb- and html-codes automaticly generated for simple posting on forums or on your blog).

Real-time collaboration for the web. With Thinkature, you can create a collaborative workspace and invite coworkers, friends, and colleagues to join you in just seconds. Once inside your workspace, you can communicate by chatting, drawing, creating cards, and adding content from around the Internet. It's all synchronous, too - no need to hit reload or get an editing lock.

A massively multiplayer Web 2.0 application where players can move 1,000 colorful tiles to form collaborative mosaic artworks. When someone moves a tile, everyone else can see it move in real-time on their screens.