There was a time Digg was a great source of traffic for many sites and if your site happened to land on Digg's front page then you'd probably get hundreds of thousands of visitors on your site within a day. These days when searching for something you won't even see Digg in the Serps. Is it because Digg is "dead?" Do any of your still promote your sites on Digg? Do you get any traffic from the site?