Here's a bit more information that may be useful.
Bog promotion - getting the attention of the search engine spiders - It is said that Google's directory comes straight from the DMOZ Directory so look into getting your blog site listed in it. The DMOZ is commonly known as the Open Directory Project and it has strict guidelines as to who is listed. Submission info can be found here.
You should *not* submit your site to Google, Yahoo, and MSN more than once every 30 days. MSN will seldom visit a website unless invited by submission. Yahoo frequents more than MSN but less than Google but will dramatically increase visits after submission. Although Google says that manually submitting your pages to their index is unnecessary, they have an interface for you to do so. But don't be surprised if it takes months for Google to acknowledge your site's existence.
"If your site has been accepted into the Open Directory, it may take anywhere from 2 weeks to several months for your site to be listed on partner sites which use the Open Directory data, such as AOL Search, Google, Netscape Search, Yahoo Search, and hundreds of other sites. We make updates of the data available weekly, but each partner has their own update schedule."