Just purchased a new website. The site uses a content management system. URL's look like this: www.MYDOMAIN.com/category.php?n=2&page=2&sort=m_in+desc&PHPSESSID=6b34be8dd57c70b750bea9a902 I see that most URL's/pages are well indexed in Google. Should I put a site map on it, and which URL's should I put in sitemap: This: www.MYDOMAIN.com/category.php?n=2&page=2&sort=m_in+desc Or This: www.MYDOMAIN.com/category.php?n=2&page=2&sort=m_in+desc&PHPSESSID=6b34be8dd57c70b750bea9a902 (From Google Search Results) Are those considered same URL's or Different? Will it be considered duplicate content? Thanks!
You should re-write the URLs completely. They're not well optimized for one. For 2, if you have 2 different types of pages out there on your site, you need to make it so that one isn't getting indexed or is 301'ing to the other. Having 2 pages that are identical will cause duplicant page issues.
If your hosting server support PHP (Looks like you do), try this free PHP script which will generate site map in xml, html, text format. It's pretty neat. http://enarion.net/google/ Very cool script.
The enarion script is definitely great for creating Google sitemaps. I'm not sure if Carrlos was looking for a Google sitemap or a regular / HTML sitemap. We took some ideas from enarion's script (but no code...) to create a dynamic HTML and Google sitemap (part of the nukeSEO addon) for the PHP-Nuke CMS.