mat_

With this plugin, you will be able to display an index with all your authorss, sort alphabeticaly. 
The shortcode is <code>[authorsindex]</code>.
Options are: 
 *ul => the class of you ul element (default = iapAlpha) 
 *li => the class of you li element (default = iapAlpha) 
 *letter => the class of you span element(the letters) (default = iapLetter) 
 *hide_empty => diplay authors that don’t have any article (default = false) 
 *optioncount => display number of post of the author (default = true) 
 *show_fullname => show full name of the author (default = false) 
 *exclude_admin => exclude the admin (default = false) 
 *menu => show a menu of the index (buddypress-like) (default = true) 
 *listpost => display a list of the post of the author in a nice tooltip
<h3>Demonstration</h3>
You can see an example of the functionnality of this plugin at <a href="http://kune.fr/index-des-auteurs/" title="Kune.fr Auteurs Index Page" rel="nofollow ugc">Kune.fr</a>
<h3>Changes</h3>
<ul>
<li>1.1 : Less bugs, one more option to display a list of post of the author in a nice tooltip</li>
<li>1.0 : First release of the plugin</li>
</ul>

Index Authors page

With this plugin, you will be able to display an index with all your authorss, sort alphabeticaly.

twardes

Automaticly generates virtual sitemaps and sitemap index in the XML format. It uses sitemap.org protocol.
Features
<ul>
<li>One-Click install sitemap</li>
<li>Creates posts, pages, tags and categories sitemaps</li>
<li>Splits sitemaps on many parts</li>
<li>Does not create permanent .xml or .xml.gz files on server</li>
<li>Dynamic generation of sitemaps</li>
<li>Possibility of setting number of links per sitemap</li>
<li>Submits created sitemap to the most popular search engines (Google, Bing)</li>
<li>Sitemap is generated only when it is being loaded</li>
</ul>
Version 1.2.3
<ul>
<li>Compatibility checked.</li>
<li>Plugin home site changed.</li>
<li>Removal of inactive submission methods.</li>
</ul>
If you find any problems write <a href="https://wordpress.org/tags/sitemap-index" rel="ugc">a new topic</a>.

Sitemap Index

Works, like it supose to

Automaticly generates virtual sitemaps and sitemap index in the XML format.

Index Authors page vs Sitemap Index