Thursday, January 21, 2010 is an internet site on which people can ask and answer math questions. It elicits a good deal of effort for free, in an Open Science, reputation-mediated way.

It has a reputation system, based on the votes "up" your questions and answers get. Other users can also reduce your reputation by 2 points, at a cost of 1 point to themselves, if they don't like your posts.

There's also a set of distinctions that users can earn, called badges.

HT: Aaron Roth

1 comment:

Mehul said...

This is based on StackOverflow and the Stack Exchange platform.