Social news sites first became popular when Digg.com launched on the Web in 2004. A social news site enables its users to submit news stories and vote on them. The most popular articles percolate to the top of the list and are rewarded with a huge surge in Web traffic. A candid discussion of each article often appears. The most popular social news sites are Digg, Reddit and StumbleUpon, which recently hit 2 million registered users. DotNetKicks is an excellent social news site for .NET programming.