Source: cirosantilli/planetmath

= PlanetMath
{c}

https://planetmath.org/

Based on <GitHub> pull requests: https://github.com/planetmath

Joe Corneli, of of the contributors, mentions this in a <OurBigBook.com>[cool-sounding "Peeragogy" context] at http://metameso.org/~joe/[]:
> I earned my doctorate at The Open University in Milton Keynes, with a thesis focused on peer produced support for peer learning in the mathematics domain. The main case study was planetmath.org; the ideas also informed the development of “Peeragogy”.