My Erdös number is at most 4 (Paul Erdős — Peter Winkler — Kin K. Leung — Andrzej Duda — Emmanouil Potetsianakis)
Some (mostly geeky) projects that imo everyone (including non-geeks) should know about: The Internet Archive, Electronic Frontier Foundation (EFF), The Tor Project (Tor), La Quadrature Du Net, Freedom of the Press Foundation (FPF), Wikimedia Commons, Project Gutenberg
I also have a tumblr account (containing mixtapes).
I believe that research should be accessible to everyone – regardless of status / affiliation / location; thus, even though I do not use them, I like the idea of projects like sci-hub and booksc.
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