One method is to drill down from top-level listings on the home page. A better option is to think of the top ways your visitors may be looking for you. Search for those words, then submit to the most relevant category that appears in the results. That way, people who search for those words will be more likely to find you, because they'll discover your category. Follow the link, and then fill out the simple forms with the information you have prepared.
Most sites see a significant traffic jump, once they get in.
But getting in can be the hard part. The fee doesn't guarantee that a site will get in, but most sites that use the service are added. The expense is small compared to the time you will save and the visitors you'll bring in. Standard Submission option. This service is free, but you may end up submitting several times without success.