Amit Agarwal

Sitemaps are a way to tell Google, Bing and other search engines about web pages, images and video content on your site that they may otherwise not discover.
The Mobile Sitemap plugin will generate a sitemap for your WordPress blog with URLs that serve mobile web content.
Do I need a XML Mobile Sitemap?
According to Matt Cutts of Google, you may not need a separate Mobile Sitemap if your WordPress blog is using <a href="http://www.labnol.org/internet/responsive-web-design-faq/21361/" rel="nofollow ugc">Responsive Web Design</a> where the same page is served to both desktop and mobile screens. Everyone else may need one.
It is also recommended that you add a rel=canonical tag in your mobile pages that point to the original URL.
Related WordPress plugins:
<ul>
<li><a href="https://wordpress.org/extend/plugins/google-image-sitemap/" rel="ugc">Google XML Sitemap for Images</a></li>
<li><a href="https://wordpress.org/extend/plugins/xml-sitemaps-for-videos/" rel="ugc">Google XML Sitemap for Videos</a></li>
</ul>
WordPress Resources:
<ul>
<li><a href="http://www.labnol.org/software/must-have-wordpress-plugins/14034/" rel="nofollow ugc">Must have WordPress Plug-ins</a></li>
<li><a href="http://www.labnol.org/internet/improve-wordpress-security/24639/" rel="nofollow ugc">Improving WordPress Security</a></li>
</ul>
The Sitemap plugins are written by <a href="http://www.labnol.org/about/" title="Amit Agarwal" rel="nofollow ugc">Amit Agarwal</a> of <a href="http://www.labnol.org/" title="Tech Blog" rel="nofollow ugc">Digital Inspiration</a>. For support, you can leave a comment in the <a href="https://wordpress.org/support/plugin/google-mobile-sitemap" rel="ugc">WordPress forum</a> or send a tweet to <a href="http://twitter.com/labnol" rel="nofollow ugc">@labnol</a>.

Google XML Sitemap for Mobile

This WordPress plugin will generate an XML Mobile Sitemap for your WordPress blog.

hdwplayer

Video sitemaps help the search engines like Google, Bing and Yahoo to discover your video content from your website.
This Video Sitemap Generator plugin will generate XML Sitemap for all YouTube, dailymotion, Vimeo and HDW player videos that you have embedded in your posts.

Video SEO, Youtube SEO Sitemap

This plugin helps you in generating Video Sitemap for your WordPress website.

Google XML Sitemap for Mobile vs Video SEO, Youtube SEO Sitemap