If you are trying to get more Diggs by shouting your own items you are killing your search engine rankings.
I just spent an entire week analyzing how to get more Diggs, not be a Digg spammer and why not to shout your own Digg items and it is very suprising what I found out.
I started out with a simple article on how to get a few more Diggs.
Then I began to see how submitting your own articles could hurt your search engine rankings. Also you should not be Digging your own items either. We all pretty much agree on that.
What I began to notice though is that when you shout items to your friends list Digg shows the items you shouted in your history tab, even though you are logged out. In other words, it is in your public profile for all to see.
This means it is in your profile where Google can see it too. If submitting your own articles over and over to Digg creates numerous entries in your public profile where search engine spiders can see them, why do numerous shouts all leading to the same URL not do the same thing?
In my testing, (and it was a deep test) I have a well supported theory that this is all true. I have chronicled the entire process with 20 different screen shots of what I have analyzed and it is all right here on my main blog.
How to get more diggs, a Digg privacy breach and why you should not be shouting your own Digg items.
Of course I welcome your comments here and on my main blog.