StackExchange and StackOverflow are particularly useful and a waste of time
StackExchange and StackOverflow are website services where anyone can participate and gain a reputation. With that reputation a person is granted more power and more visibility to both ask questions and give answers. This means that popular people who give competent answers, and ask questions that other people can comprehend and also want the answers to, will gain all the power of speech and to limit or control input from others on the site. Popularity... the old cliche strikes again. Yes, on these sites popularity gives people power, which in the theory of specialization is a good thing, and since the primary subjects on these sites are about programming and computing you would think it wouldn't be anything like a classic high school popularity contest. Alas, popularity is become a well establish bane of their sites, wherein if you don't fit in with the language and opinions of the popular participants your work and contributions, however helpful or correct, will be...