my comprehension and some advice about digg

DIGG is excellent when used right. Although you have to keep in mind that the benefits aren』t always direct. Meaning. Don』t just expect that once you post something to have a million diggs and huge flood of traffic come in.
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  T2 |& ?5 \% l8 g- LThat』s not how it works. Using dig for various keyword niches can give you better rankings in google fairly quickly because most digg pages get a much better PR than other sites.
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You main goal with using digg is to have people blogging about your digg and getting inbound links. Not so much in having digg just send you a whole pile of diggers.
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IMO digg is a great site that can definitely contribute to your SEO but just don』t think it』s going to be the be-all/end-all SEO tactic that is all you have to do to get to #1

If you』re looking to have a lot of diggs, or intend to have a lot of diggs, make sure your hosting can handle the load. If your submission makes it as a top story on digg, your hosting will take a huge hit as far as CPU on your shared server. Most shared server companies will have something in their terms about using up 20% of the CPU resources…this will result in your account being suspended.
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- Y1 ]! y* T( r4 _There are lot of little etiquette things to know when submitting to digg, so as to not tick off the members. Ticking off the members might result in a big hit of diggs with the members burying your submission.

There are other user-submitted news sites like digg, and might be better for your site. Digg is great for a huge one-time short-term amount of traffic. This tends to trail off pretty quick, once it is off the front page. Other sites are better giving a good amount of traffic over a longer time period.