Make your site easier to navigate

The navigation of a website is important in helping visitors quickly find the content they want. It can
also help search engines understand what content the webmaster thinks is important. Although
Google's search results are provided at a page level, Google also likes to have a sense of what role a
page plays in the bigger picture of the site.
All sites have a home or "root" page, which is usually the most frequented page on the site and the
starting place of navigation for many visitors. Unless your site has only a handful of pages, you should
think about how visitors will go from a general page (your root page) to a page containing more
specific content. Do you have enough pages around a specific topic area that it would make sense to
create a page describing these related pages (e.g. root page -> related topic listing -> specific topic)?
Do you have hundreds of different products that need to be classified under multiple category and
subcategory pages?
The directory structure for our small website on baseball cards
Google's Search Engine Optimization Starter Guide, Version 1.1, 13 Nov 2008, latest version at Google Webmaster Central
A sitemap (lower-case) is a simple page on your site that displays the structure of your website, and
usually consists of a hierarchical listing of the pages on your site. Visitors may visit this page if they
are having problems finding pages on your site. While search engines will also visit this page, getting
good crawl coverage of the pages on your site, it's mainly aimed at human visitors.
An XML Sitemap (upper-case) file, which you can submit through Google's Webmaster Tools, makes
it easier for Google to discover the pages on your site. Using a Sitemap file is also one way (though
not guaranteed) to tell Google which version of a URL you'd prefer as the canonical one (e.g.
http://brandonsbaseballcards.com/ or http://www.brandonsbaseballcards.com/; more on what's a
preferred domain). Google helped create the open source Sitemap Generator script to help you
create a Sitemap file for your site. To learn more about Sitemaps, the Webmaster Help Center
provides a useful guide to Sitemap files.