We recently launched a news channel with very relevant, uptodate content for our site. It is updated daily. I submit each article to 10 or 12 social bookmark sites. I am very aware of the need to act like a real user to acheive the best SEO benefits. However, I would like to know how I can improve people's responses to my articles on the sites? As an example, we get around 10 diggs for some articles, but obviously to acheive maximum benefit this needs to be a lot higher. How do you acheive this?