Humble Book Bundle: Linux and BSD Bookshelfhumblebundle.com4 points·by wang42·7 jaar geleden·0 comments
CO2 in the atmosphere just exceeded 415ppm for the first time in human historytechcrunch.com500 points·by wang42·7 jaar geleden·533 comments
Chess Tactics Explained in Plain Englishchesstactics.org271 points·by wang42·9 jaar geleden·23 comments