RAX - Google XML Sitemap will automatically generate xml sitemap whenever post or page is published/deleted. This helps to crowl your blog content, get the search engine optimization and get the more traffic from search engine. XML sitemap is made for Google Webmaster Tools. You just need to put the generated XML sitemap in your Google Webmaster Tools account.

The Sitemaps plugin will generate an XML sitemap of your WordPress website and ping the most popular search engines: Google, Bing, and Ask.com.