There are many people who talk about the importance of sitemaps.How useful is it to have a sitemap? I would like to know how it would supply gains for a website. I would be very glad if there is anybody who could tell me something about it.A friend of mine told me that it is very helpful for the visitors of the site as it helps them in simple navigation. It allows the search engines to seek the website easily. If such is the case,I will then opt to have sitemaps for my website.Kindly enlighten me about this matter.