Howdy! Welcome to our community of more than 130.000 members devoted to web hosting. This is a great place to get special offers from web hosts and post your own requests or ads. To start posting sign up here. Cheers!
A sitemap is very important, as search engines can't read java or flash sitemaps can help you out when optimalisate your website for search engines.
Its basicly a map that tells them where wich page is.
There are two types of sitemap (basically): HTML and XML
The HTML one is for your visitors where they will know which "link" is for what
The XML one are for search engine bots so that they can get all the internal links of the site in one place and thus a higher chance of getting indexed, and as a result: better SEO
I think, When you create a sitemap, you are actually creating a single page which contains links to every single page on your site. Imagine what happens when search engine robots hit this page -- they will follow the links on the sitemap and naturally every single page of your site gets indexed by search engines! It is also for this purpose that a link to the sitemap has to be placed prominently on the front page of your website.
It important while it help you index more page and allow Google to crawl your site easily.
Because without a Google map, Google may skip out or do not crawl certain of your site page.
Beside that sitemap help you to define your page error and page not found in Google webmaster tools to notice you . Because those error in your site will affect how Google judge the quality of your site.