Benefits of XML sitemap and HTML sitemaps?
 

There are two types of sitemaps: XML sitemaps and HTML sitemaps.
An XML sitemaps is an XML file that lists URLs for a site, along with additional information about each URL and how often the pages on your site changes and the pages modified or updated by the admin . XML sitemaps give Google and other search engines important information or changes that you are doing of your website . In other way the HTML sitemaps is allows the visitors of the website to easily navigate the pages or information of your website.:D

I would recommend you to create a html based sitemap within your website (just an html page which will be having the links to all of your website pages). And add that html sitemap/html based sitemap in the home page of your website and also in other main pages like about us, contact us etc.

And now, create a xml sitemap by using any xml sitemap generators (even though there is a limit to certain no. of pages like 100 pages or 200 etc). It will be enough for us to submit it to Google. Once you submit that xml sitemap at Google webmaster tools, google will start crawling the web pages which was found in the sitemap, and here there is a point i.e. google not only crawl the web pages found in the xml sitemap but also crawl the web pages found (google will find your web pages through the links which you have placed in your website/page) in the homepage/subpages. So, this is enough for us to get all our pages get crawled (remember that, we've created a html sitemap and placed a link at homepage so google will be finding this html sitemap link first and will crawl it, when crawling the html sitemap page, google will again find a lots of links and it will again start to crawl them).

XML sitemap is most important to create when you have a dynamic website or a website with thousands of pages. Giving the search engines priority information. There is an optional tag in the site map for the priority of the page.
HTML sitemaps are create to make the site user friendly.

Hello, thank you for explanations.
correct me if I'm wrong : my website is a dynamic one (each time an owner of property give us his apartment to manage we have to create a new page). So the best think to do is to create a new XML sitemap and send it to google webmaster toos each time I create a new page ? We recommanded me to use Xenu to do that ? is that a good tool ?

Thanks for your answers

google recognise XML sitemap

Sorry, I do not have too many recommendations.

Remember to use the XML tag to get your most important pages crawled most! This helps Google bots identify what pages should rank better.

Nice site....... :D :)

Nice site....... good very