There is a simple way to rank your content to the top of the google search engines with Digg,It's all about the catchy title and the niche keywords by using niche keywords you can LITERALLY rank to the top of google no doubt.....

Digg is linked to google therefore any Digg written will be seen on google depending on the competetive keywords,and how you use your keywords,will really count.....

But Digg is excellent to use for generating more traffic and leads,to your website....If you learn the right strategies of using the "money keywords" SEO off-page on-page you will be able to use Dig to the best advantage you can but you have to have that knowledge first to be succesful on rankings with Digg,and one of the most important ways are using the niche keywords

This link is to find more about the niche keywords http://www.squidoo.com/lensmaster/new_workshop/therightnichekeywords?wz=lens_publish