Using Digg correctly can send thousands to your website nearly overnight. This is how Digg works : People register with the site, and thus join the Digg community. You can submit just about anything to Digg, this includes videos, stories, blog entries, funny photos Anything! What then happens is "Registered Users" then "Digg" the story or whatever has been submitted. Digg is really cool for your website and you can have many quality link building uses for it. However, make sure you do not over abuse it. Use Digg for the really good stuff for your site.
The "Digg" is a vote for the content that was submitted to Digg. The stories with the highest number of "Diggs" make it onto the front page of Digg. Stories may be "Buried" that might send them shooting down to rankings at Digg. If the story does not receive enough "Diggs" it is then sent to the Digg homepage. If the story starts to get "buried" it will immediately disappear. Writing a good story that gets some Diggs, and by number I mean 2 hundred can produce one or two thousand page impressions which should mean thousands of visitors and future clients to your web sites. To supply a favored story you would like to write down some thoughts about something that will help people, in precise fact writing about Digg itself is a seriously favored subject and frequently makes it onto the lead spot. Sometime it can be very hard to get ahead on Digg for your quality link building efforts, but if you have a really good story I wouldn't worry about it too much, just keep giving great information and you will see your site flourish.
This is a type of viral promoting, get it completely correct and your web site will do stupendously well, get that wrong and nothing is going to occur.