suwunk
2011-06-22, 05:55 AM
Sitemaps are particularly helpful if:
Your site has dynamic content.
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 us 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.
About Sitemaps - Webmaster Tools Help (http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=156184)
You should not use Sitemaps if your site is a private website, for example, for privacy from search engine results
Your site has dynamic content.
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 us 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.
About Sitemaps - Webmaster Tools Help (http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=156184)
You should not use Sitemaps if your site is a private website, for example, for privacy from search engine results