Voo2do is a free online project management system.
Voo2do tracks priority, due date, and time estimates for each task. There is no notion of "lists" in voo2do- tasks can be grouped by project, but you can view and edit a bunch of projects together
Mindmapping is a highly productive method of visual brainstorming, used to plan projects or map out knowledge.
Mindomo allows you to organize ideas and work, plan and track projects, solve everyday prolbems, manage tasks, and teach & learn visually.
The Tree of Life Web Project is a collaborative effort of biologists and nature enthusiasts from around the world. On more than 10,000 World Wide Web pages, the project provides information about biodiversity, the characteristics of different groups of organisms, and their evolutionary history (phylogeny).
Project Gutenberg is the place where you can download over 30,000 free ebooks to read on your PC, iPhone, iTouch, Kindle, Sony Reader or other portable device.
The complete web whiteboard.
Just start skrbl, give out your URL and instantly share online. Use skrbl to collaborate with others or, keep it your own private web space. Write notes, sketch drawings, upload pictures, share files... Everyone sees the same screen, everybody stays on the same page.
Includes tutorials on various Web 2.0 tools. The Collaborative Projects listed are most informative. This site also provides examples of using Google Earth for collaborative biology projects, although it is applicable for other disciplines as well.
The Edusim application is a slimmed down version of the core Open Cobalt Metaverse Project. Edusim is a 3D multi-user virtual world platform and authoring toolkit intended for your classroom interactive whiteboard, but equally powerful on the students laptop or desktop computers. Cobalt - Edusim has been tested and works on the Smartboard, Activeboard, Interwriter, Polyvision, Mimio, eBeam, and even the Wiimote Whiteboard. Edusim is extendable allowing multiple classrooms to connect their interactive whiteboards for collaborative learning session.
Open Cobalt Alpha is the first step in a long term project to make available to all people a free and open source platform for constructing, accessing, and sharing virtual workspaces for research and education. This 3D multimedia wiki technology makes it easy to create deeply collaborative and hyperlinked multi-user virtual workspaces, virtual exhibit spaces, and game-based learning and training environments that run on all major software operating systems. By using a peer-based messaging protocol to reduce reliance on server infrastructures for support of basic in world interactions across many participants, Open Cobalt makes it possible for people hyperlink their virtual worlds via 3D portals to form a large distributed network of interconnected collaboration spaces. It also makes it possible for schools and other organizations to freely set up their own networks of public and private 3D virtual workspaces that feature integrated web browsing, voice chat, text chat, and access to remote desktop applications and services.