microkid

This powerful plugin makes it super easy to manually select related posts for your content. You can search and select posts that fit your criteria, all from within the write/edit post screen.
Creating a system of related items on your website will result in more page views per unique visitor, and will improve Google’s understanding of your content.
As mentioned by <a href="http://yoast.com/articles/wordpress-seo/#relatedposts" title="WordPress SEO and Related Posts " rel="nofollow ugc">WordPress SEO</a> master Yoast:
<blockquote>
A very good alternative is Microkid’s related post plugin, which lets you manually pick related posts. This might cost a bit more time before you hit publish but might very well be worth your while.
</blockquote>
You can display related posts automatically underneath your content, use a shortcode or use the widget. Or, if you have some development skills, you can use one of the available API functions for full control of the way related posts are displayed on your website.
With its full support for Custom Post Types, this plugin will work perfectly for both basic and advanced WordPress installations.
See the official plugin homepage for <a href="http://www.microkid.net/wordpress/related-posts/" title="Wordpress Related Posts" rel="nofollow ugc">Related Posts for WordPress</a> for more info and discussion.
<h4>Features</h4>
<ul>
<li>Easily find posts or pages that might be related to the one you are writing with an integrated AJAX powered search utility</li>
<li>Easily add and remove relations with a single click</li>
<li>Extreme flexibility in the customization of the way the related posts are displayed on your website</li>
<li>The relationship created works reciprocal, which means that if post A is added as related to post B, post B is automatically added as related to post A as well (this option can be turned off easily through the settings panel)</li>
<li>Custom post types support</li>
<li>Multiple widget support with extended customization options</li>
<li>Shortcode support: add the [related-posts] shortcode to your post content to display related posts anywhere you want</li>
<li>Automatically display a list of related posts underneath your posts content. No need to add any PHP tags in your template files, but several <a href="http://www.microkid.net/wordpress/related-posts/#API" title="Related Posts for WordPress API functions" rel="nofollow ugc">functions</a> available for advanced users.</li>
<li>Available in a growing number of languages</li>
</ul>

So far good

Increase your pageviews and SEO by manually selecting related posts for your content. Easy reciprocal linking of related posts and pages.

borgboy

The Article Forge WordPress plugin aims to provide a capable facility to aid in the writing, publishing, and maintenance of hierarchical documents for the web. In particular are stories, articles, technical documents and periodicals that have titled sections.
Documents are organized such that the head consists of a title and summary (ie. abstract) describing the whole. Beneath this head are the various sections comprising the document with each section consisting of a heading and content. The entire document does not need to be assembled before publishing; sections can be published independently of each other.
Many useful features abound through out the editing interface. The main article edit screen provides a sortable ordered list of the sections with short-cuts to the section and a link to add new sections. Further, each document has display options that allow the author to customize the look and feel of the published article. These include:
<ul>
<li>Display the Table of Contents on each page</li>
<li>Display the Summary on each page</li>
<li>Display the entire document on one page</li>
</ul>
CSS class tags are exposed for each div in the HTML content providing an easy means for users to specify their own style. In fact, users are encouraged to make their own copy of the css, js, and HTML under the content directory. An option is provided under the Settings page to specify the content directory from which files are served. All .css and .js files under the corresponding directories are automatically included in frontend Article Forge related pages.
The Article Forge plugin is unique in that the concepts of template and content are separated. Content is injected into the template instead of separate template files being required for each of the different post types, easing the burden on website maintainers. (See the Installation section for details.)
General commentary, upcoming features, and other WordPress related thought can be found at <a href="http://www.bytewisemcu.org/article/article-forge/" title="Article Forge in general" rel="nofollow ugc">http://www.bytewisemcu.org/article/article-forge/</a>.

Article Forge

The Article Forge WP plugin provides a conducive environment for the writing and publishing of hierarchical prose.

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