/g/ is a board on 4chan for discussing technology. 4chan is a loosely-moderated website where you can discuss things anonymously. It's unpleasant, would not recommend.
It has a certain allure and acceptance for fringe modes of thought that keeps people around.
I myself started browsing in high-school and haven't been able to stop since -- I can probably attribute the development of my entire engineering philosophy to the place.
