I have quite enjoyed the odd contribution to an app by Google called Crowdsource. You can find it either on the web, or also as an app.
Crowdsource allows people to throw data at Google in controlled ways to add to the massive pile of data that Google uses to improve its services and at the end of the day beat its competition.
It does this by providing a collection of micro contribution tasks in a marginally gamified way, similar to how Google Maps contributions get you Local Guide points etc. In Crowdsource you get a contribution count, a level, and a metric for agreements.
While I enjoy making the odd contribution when bored out of my mind and enjoy looking at the new challenges (currently at 2625 contributions), I always think that data like this should just be going out into the world under a free licence to benefit everyone.
So finally, introducing WikiCrowd, an interface, and soon to be app, that I developed over the new year period.
WikiCrowd Overview
WikiCrowd is hosted on toolforge and can be found at https://wikicrowd.toolforge.org/ (Source code on Github)
In order to contribute, you need some knowledge of the world, a Wikimedia account and that’s it!
