7. Use a sitemap, especially if your site is large and extensive. Sitemaps are the core of Search Engine Friendly Design and search engines love them. Sitemaps give visitors and search engines an organized and understandable guide to what’s on your site.
8. Make sure the site address is simple and indicative of the company, eg www.acmewidgets.com Also keep links human-readable, e.g. www.example.com/bio not www.example.com/2718642517.html
9. Use ALT tags on all images/graphics and TITLE tags on all links and incorporate keywords.
10. Update often. Incorporate blogs, twitter feeds and event calendars. The more often your site is updated, the more often the robots will crawl it and the higher the ranking. Also, when content is frequently updated people will check back more often.