Explore the data

Global Voices is an international community of bloggers who report on blogs and citizen media from around the world
A research project and a nomadic urban laboratory to explore that complex concept called the urban commons. The project proposes a method where the commons are discussed, defined with parameters and, sometimes, represented in short videos. In addition it creates a networks of people involved on the research about urban commons to organize workshops to mapping commons on main cities around the world.
A collaborative discussion website. Articles are created and submitted by Kuro5hin's users and submitted to a queue for evaluation. Site members can vote for or against publishing an article and, once the article has reached a certain number of votes, it is then published to the site or deleted from the queue.The site has been described as "a free-for-all of news and opinion written by readers".
A small NASA experimental project that uses public volunteers (nicknamed "clickworkers" on the site) for scientific tasks that require human perception and common sense, but not a lot of scientific training. Clickworkers are able to work when, and for however long they choose, doing routine analysis that would normally require months of work by scientists or graduate students.
Astronomers at Las Cumbres Observatory are investigating exoplanets - planets which orbit stars other than our Sun - and you can too. Joining Agent Exoplanet you will study known exoplanets using images taken by LCOGT’s telescopes. You'll measure the brightness of a star while a planet moves between it and our viewpoint.You can examine as many images, from as many exoplanet transit events, as you like and contribute to understanding the properties of each exoplanet.
Site and community for reporting personal observations of any plant or animal species in the world.
EyeWire is a game to map the brain from Seung Lab at MIT. Anyone can play and you need no scientific background. Over 80,000 people from 130 countries already do. Together we are mapping the 3D structure of neurons; advancing our quest to understand ourselves.
Archive.org is building a digital library of Internet sites and other cultural artifacts in digital form. Like a paper library, we provide free access to researchers, historians, scholars, the print disabled, and the general public.
Ushahidi is a non-profit tech company that specializes in developing free and open source software for information collection, visualization and interactive mapping.
OpenStreetMap (OSM) is a collaborative project to create a free editable map of the world. Two major driving forces behind the establishment and growth of OSM have been restrictions on use or availability of map information across much of the world and the advent of inexpensive portable satellite navigation devices.

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There are currently 383 Commons-Based Peer Production cases!