Google Webmaster Central  introduced new Sitemap generator. This generator has the status of open source project  and uses server’s traffic of user, log files or files servers to quickly search the site URL.

Through Sitemap generator service, you can create:
- XML Sitemap for a Web search under the standards of sitemaps.org;
- Mobile Sitemap for sites aimed at mobile devices;
- Code Search Sitemaps to search the code available to users;

Generator is a server plug-ins, which can be installed on the servers, Linux / Apache and Microsoft IIS Windows. More information can be found on the documentation Google Sitemap Generator.