Google XML Sitemap

If you have a website and want Google to know about all the pages in your site, build a Google Sitemap. Webmasters used to be frustrated by the slow methodological way in which Google gradually finds the pages in your site. If your site starts out big and has a lot of dynamic pages, then this is unacceptable.Now it is possible through Google SiteMap, which helps Google do it quiet efficiently and quickly.Google SiteMap is an XML file which contains a lot of information of your site like the links to various pages on your site,priority of each page,how frequently a page change etc.This information helps Google in many ways like:

Helps you set priority of various links

If you have a lot of pages and Google doesn't have time to crawl all of your pages all right away, it will focus on the ones that changed according to your priority.

Helps google in finding your pages more often

Google gets an exact information of your website and this helps it to find your pages more quickly and frequently.