From: http://www.cnblogs.com/yangb2009/archive/2009/06/16/sitemap.html
The XML Map allows search engines to quickly learn about updates to your site. Both Google and Yahoo have used sitemap XML map to accelerate the Indexing Service.
1. Online XML map site URL generation:
Http://www.xml-sitemaps.com
It is easy to use. Enter your website address and wait for a few minutes to download the maps of various types generated for your site. After a trial, you can only generate up to 500 records.
2. We also recommend a software local and online XML map generation site:
Http://www.sitemapbuilder.net
This website also provides a tool to generate sitemap. xml on the client. Software:
Http://www.sitemapbuilder.net/downloads/SiteMapBuilder.zip
After the download and installation, run the enter website URL. You can index and generate a homepage or a full-site map. You can also filter the URL. However, it is best to generate a file of less than 10 MB, otherwise, Google's spider cannot identify and read.
3. There is also a domestic online sitemap. XML generation tool, but it seems that I cannot use it now. I don't know if it is a problem with my computer. You can try it. I used this tool to generate sitemap. XML is quite good. The URL is:
Http://www.huluwa.cn/sitemap.aspx