Web Placement Solutions- To further assist the search engines in finding your site,

Sitemaps can be helpful if:

• Your site has dynamic content, such as videos
• Your site has pages that aren't easily discovered by Googlebot during the crawl process—for example, pages featuring rich AJAX or images.
• Your site is new and has few links to it. (Googlebot crawls the web by following links from one page to another, so if your site isn't well linked, it may be hard for Google to discover it.)
• Your site has a large archive of content pages that are not well linked to each other, or are not linked at all. For more information contact Web Placement Solutions.