Make a checklist of where to submit your site after publishing. Your list should include DMOZ, Yahoo, Google, MSN, and possibly a few other directories such as Yelp.
Here are some quick links to follow to submit your site to search engines. (You are able to submit your site in Sitebuilder to Google and MSN in your Administrator Tools in Sitebuilder)
Search Engines
1. Submit site to Google
2. Submit site to MSN
3. Submit site to Yahoo
Directories
1. Submit site to Yelp
2. Submit site to City Search
3. Submit site to Merchant Circle