Huda Toriq

With this plugin, Yahoo Messenger users can put a nice, fully customized image button that shows whether they’re online or not on their blog.

Yahoo Messenger Online Status

Allows blog owners to show their Yahoo Messenger online status using their own status button.

Matt Rude

MDR Webmaster Tools provides many small necessary functions to WordPress when for managing your site with <a href="https://www.google.com/webmasters/tools/" rel="nofollow ugc">Google</a>, <a href="https://siteexplorer.search.yahoo.com" rel="nofollow ugc">Yahoo</a>, & <a href="http://www.bing.com/toolbox/webmaster" rel="nofollow ugc">Bing’s</a> webmaster tools sites. The plugin adds the following functions to WordPress
<ul>
<li>Dynamic Sitemap</li>
<li>Ability to modify your robots.txt file.</li>
<li>Site verification scripts for Google, Yahoo, & Bing.</li>
<li>Google Analytics Tracking Script for registered sites.</li>
</ul>
This plugin will create a sitemap for your WordPress site (http://example.com/sitemap.xml). No files are stored on your disk, the sitemap.xml file is generate as needed, like your feeds. No UI to speak of, just drop in place and your good to go.
This plugin is fully translatable with the full POT file included.
For Support, please contact me via the <a href="https://wordpress.org/tags/mdr-webmaster-tools?forum_id=10#postform" rel="ugc">WordPress Forums</a>, if you find a bug, please create a ticket on the plugins <a href="https://github.com/mattrude/wp-plugin-webmaster-tools/issues" rel="nofollow ugc">Github Issues</a> page.
See Tools -> Webmaster Tools

MDR Webmaster Tools

Provides Webmaster site verification scripts for Google, Yahoo, & Bing. Plugin also provides Google Analytics Tracking Script and sitemap support.

Yahoo Messenger Online Status vs MDR Webmaster Tools