I heard about a piece of software that will submit your article to 400 article directories; this will give you 400 backlinks with one article and increase yor page rank...
However, wouldn't this break
Google's rule of DUPLICATE CONTENT????
I am not sure... I want to buy this product...but not if it will put my website into the Google Blackhole/Sandbox.
Have you ever experimented with any of these kinds of article submissions bots? If so, what were the results?