Hi johnee
This is a subject close to my heart as I have recently added a few features to my site to maximise coverage.
First of all get the RSS feeds on your site. There is a good tool on
Lee Odden's TopRank Blog. Actually the same goes for the
Social Bookmarks tool
Also to increase the coverage for your best articles, publish them in an article directory.
I have recently created a sticky listing the best article directories about. (please feel free to add to it). Include a link to your blog and/or website in the signature box provided as this is what accompanies your article when distributed.
Nb: Keep a watchful eye on your article as not everyone willingly follow the rules.
Another trick I have learned is if you belong to a forum which you think will benefit from your article, then post the first/couple of paragraphs of that article and then include a link to read the entire thing on your blog. An example of this method is my
Recent Article on the WPW Graphics/Design Forum. Invite people to contribute. Some people will reply on the forum but the odd few will leave comments on your blog as well.
Although having done all of that, the best thing you can do for your site is contribute quality articles to it regularly. Its not always practical to contribute 2 posts a day. I contribute roughly twice a week (very roughly) and the search engines seem to be fine with that.
HTH.