Tobias Nyholm

This plugin puts a table of contents on your page. You just need to type <code>[toc levels=3 title="Table of contents"]</code> in the page/post editor. That’s it! 
You dont need to edit your themes source code. The plugin allows you to set a title of the toc box. You can also choose which heading tags (h1,h2,h3,h4 etc) 
you want to have in the table of contents. For more information see installation page or the 
<a href="http://www.webfish.se/wp/plugins/seo-friendly-table-of-contents" title="Webfish - WordPress plugin" rel="nofollow ugc">Webfish</a> homepage.

Seo Friendly Table of Contents

A simple seo friendly table of contents plugin that does not require editing in your themes source code.

shawfactor

This plugin makes it easy to create a wiki like TOC (table of contents) in your posts or pages using shortcode, no linking or creating anchor is needed.
Unlike other plugins this is 100% semantic, ie drop the comment string: <code></code>.
Into your content body and the plugin will do the rest ie it will generate a table of contents based on the h2 and h3 tags in the content body.
If the comment is not included the table of contents is not generated.
<h4>Features:</h4>

LH Table of Contents

create a wiki like TOC (table of contents) in your posts or pages using shortcode.

Seo Friendly Table of Contents vs LH Table of Contents