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a way to store, sync, share, model and back up content

GIMP is the GNU Image Manipulation Program. It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. It works on many operating systems, in many languages. 

Bitcoin is a peer-to-peer currency. Peer-to-peer means that no central authority issues new money or tracks transactions. These tasks are managed collectively by the network.

Voted the best online project collaboration software for project managers, contractors, freelancers and teams.

A notebook you can organize, back up and share!

Etherpad is a hosted web service that allows really real-time document collaboration for groups of users. Etherpad is open source; you can host your own Etherpad by downloading the source code or try Etherpad for free on one of the Public Sites. The Etherpad Foundation is a not-for-profit organisation dedicated to the development of the Etherpad project.

Choose: Compare: Get Help: Enhance: Find the Wikis that match your personal needs: Just answer a few questions in the Wiki Choice Wizard or create a customized Search.

Read the Docs hosts documentation, making it fully searchable and easy to find. You can import your docs using any major version control system, including Mercurial, Git, Subversion, and Bazaar. It also supports webhooks so your docs get built when you commit code. There's also support for versioning so you can build docs from tagged versions of your code in your repository. You can even create docs on the site. It's free and simple. Read Getting Started and find out how to host your docs on Read the Docs!

The solution for your local and online media

Tornado is an open source version of the scalable, non-blocking web server and tools that power FriendFeed. The FriendFeed application is written using a web framework that looks a bit like web.py or Google's webapp, but with additional tools and optimizations to take advantage of the underlying non-blocking infrastructure.

Kubuntu, making your PC friendly Kubuntu is an operating system built by a worldwide team of expert developers. It contains all the applications you need: a web browser, an office suite, media apps, an instant messaging client and many more.

ShiftSpace is an open source browser plugin for collaboratively annotating, editing and shifting the web.

The Open Standard provides online news coverage of open, transparent, and collaborative systems at work in technology and our daily lives. Our purpose is to showcase the positive global impact of these systems and inspire more people to seek out, support and adopt open principles of accessibility, participation and experimentation.

"Online Bookmarks in Any Browser"