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Academic Torrents

The academic torrents network is built for researchers, by researchers. Its distributed peer-to-peer library system automatically replicates your datasets on many servers, so you don't have to worry about managing your own servers or file availability. Everyone who has data becomes a mirror for those data so the system is fault-tolerant.

Ongoingworlds

Ongoing Worlds is a website for people to setup a play-by-post game (PbP game), invite members, and post their ongoing story. A PbP game is an online text-based role-playing game in which players interact with each other and a predefined environment via text. It is a subset of the online role-playing community which caters to both gamers and creative writers

Wikiloc

The goal of Wikiloc is to help to share and discover GPS trails and waypoints from around the World in an easy way.

StencylForge

Stencyl is a game creation platform that allows users to create 2D video games for computers, mobile devices, and the web. The software is available for free, with select publishing options available for purchase. StencylForge is the repository for user-created (and team-created) resources. StencylForge hosts all of the following kinds of resources: graphics, sound effects, music, behaviors, example games, kits, etc.

Steam workshop

The Steam Workshop is a central hub of player-created content and tools to publish, organize, and download that content into the video games of the Steam platform (see below). Different games will utilize the Workshop in different ways. Some games, like Team Fortress 2, allow you to create and submit new items (such as hats, weapons, badges, boots, and more) for consideration to be incorporated into the actual game.

BoardGameGeek

BoardGameGeek is an online board gaming resource and community. There are reviews, ratings, images, play-aids, translations, and session reports from board game geeks across the world, as well as live discussion forums. In addition, every day nearly a hundred game trades pass through the hands of registered members, as well as transactions in the marketplace. The site is updated on a real-time basis by its large user base. BoardGameGeek was founded in January 2000 by Scott Alden and Derk Solko as a resource for the board gaming hobby.

Kopfschlag

Kopfschlag is a collective and anonymous internet-based project created by an anonymous team. The online visitors are part of it by drawing, writing, erasing and sharing their artworks on Kopfschlag's virtual wall, which can be defined as something between an etch a sketch and the exquisite corpse. Everything on this site is licensed under the Creative Commons Attribution license.

Ethereum

Ethereum is a next-generation distributed cryptographic ledger that is designed to allow users to encode advanced transaction types, and decentralized applications into the blockchain. As opposed to Bitcoin and other derivative crypto-currencies, Ethereum features an internal Turing-complete scripting language, which a programmer can use to construct any smart contract or transaction type that can be mathematically defined.

OpenPlans

OpenPlans is a non-profit technology based advocacy organization which aims to help to open up government and improve transportation systems. OpenPlans currently has a staff of 50 people.

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There are currently 385 Commons-Based Peer Production cases!