An easy way to add Xml sitemap in your website .It can be especially helpful if your content is not easily discoverable by the crawler.
The Sitemaps plugin will generate an XML sitemap of your WordPress website and ping the most popular search engines: Google, Bing, and Ask.com.
Automatically generate sitemap divided by month to scale for large website and to reduce the load of each post generation excluding old posts and page
This plugin generates an XML file containg information about the videos embedded in your WP Pages and Posts as per Google XML Schema for the Video Sit
A post and page utility displaying ALL posts/pages in a single view. Useful for sites with large volume of content that are regularly updated.
This plugin will generate a special video XML sitemap which will help search engines rank you better.
WP-Media-SiteMap generate a sitemap of all your media content : images, video, flash animation.