This entry is a stub, about how useful Wikipedia really is. For the last two months, I've basically been teaching the practical part of my Hardware certification course from old test questions, and the theoretical part from Wikipedia.
It also reminds me of an article I read, about a guy who reinstalled MS-DOS on his computer because he kept checking wikipedia every five minutes and could never get any work done. His idea was something like "with all this information, we're not getting smarter, we're getting shallower."
