John Godley

A very simple plugin that adds a drop-down listbox to the bottom of multi-page posts. The purpose of this box is to allow the user to jump directly to a named page, rather than navigating using page numbers.
<h3>Documentation</h3>
Full documentation can be found on the <a href="http://urbangiraffe.com/plugins/jumpto/" rel="nofollow ugc">Jump To</a> page.

Micha? Ochman

<a href="http://blog.scur.pl/wordpress-post-link-shortcode/" rel="nofollow ugc">Post link shortcode</a> is a WordPress plugin that adds a possiblity to link to posts and pages within your post or page content using a custom shortcode.
For more information, check out <a href="http://blog.scur.pl/wordpress-post-link-shortcode/" rel="nofollow ugc">Post link shortcode</a>.
Features include:
<ul>
<li>Usage as simple as using [post] in your post/page content</li>
<li>Customising the output by specifying anchor title, text and custom CSS classes</li>
</ul>

Post link shortcode

Link to posts and pages from your content using a simple shortcode.

Jump To vs Post link shortcode