Read my contribution at the Wikipedia @ 20 project. Draft essays are available for feedback. Anyone can create an account and comment on these works-in-progress. Revised and selected entries will be published by the MIT Press in a printed collection, also under the Creative Commons Attribution-NonCommercial 4.0 International license.
In our essai, we aim at investigating the evolution of the relationship between amateurs and institutions, or, in other words, between non-professionals and professionals on Wikipedia along the last years and the recent tendency of using Wikipedia as a citizen science tool. Read it and comment it here: https://wikipedia20.pubpub.org/pub/u9tt7i19