On a related note just came across the Whose Knowledge campaign:
noting the identified issue of Public Online Knowledge recommending a look at Wikipedia:
We’re piloting resources and methods for centering the knowledge and expertise of marginalized communities on the internet, starting with Wikipedia’s online knowledge repository. As one of the world’s most visited websites, Wikipedia is a good proxy for knowledge on the internet more broadly, and we know that Wikipedia is not representative of the knowledge of the world.
Much can be done individually and collectively by widening those participating gaps in Wikipedia authoring.