Did you know that there are hundreds of free directories that you can submit your website to in order to build valuable links?
The submission process is tedius and boring. It's likely that you'll want to outsource it to an affordable resource. The Savvy Directory Submission Guide considers all the fields that will be needed for the different directories, simplifying management and improving accuracy. It's filled with some examples that you can follow.
Take the time to write keyword-rich anchor text. This helps build your websites search engine "score" for your keywords. Don't just use your company name. You should already rank high for that!
Write a description that is compelling, keyword-rich and descriptive. Provide the right URL, category, prioritize keywords and include a valid, but generic email. You don't want you own email to fill with spam. If you have an RSS feed, include that as well.
Make sure all the information is correct, because you don't really have a chance to change it.