reneade

This plugin is exactly what you need if you like to include a list of posts (latest posts, most commented posts, future posts, …) in a page, post or widget very easy! This WordPress plugin provides placeholders for configurable dynamic lists of posts. The placeholders can be used in posts, pages or widgets, and will get replaced to the list of posts. Of course, it is also possible to use the lists directly in your template files. You can define the placeholders yourself and configure the list that should replace it.
You can define multiple placeholders like %MYPLACEHOLDER%. 
For each placeholder you can configure the list that replaces the placeholder if the page/widget/post gets viewed. 
You can decide to list posts of a specific category, author or tag. You can configure how to order them or what status the post has to have for example. Of course you can set the maximum number of posts to display. 
You can configure the html output for before and for after the list, customize the html string for each entry of the list, and set a string to display if there are no posts. 
In these strings you can use placeholders. For example: %count%, %numberposts%, %counter%, %postid%, %posttitle%, %posturl%, %author%, %date%, %time%, %modifieddate%, %modifiedtime%, … (case sensitive!)
Plugin Website: http://www.rene-ade.de/inhalte/wordpress-plugin-postlists.html 
Comments are welcome! And of course, I also like presents of my Amazon-Wishlist or paypal donations to finance my website. 🙂
<h3>Update</h3>
<ol>
<li>Activate “Keep lists and settings also if plugin gets deactivated” if you dont want to loose your lists settings</li>
<li>Deactivate the PostLists-Plugin</li>
<li>Remove the existing folder ‘postlists’ with all files from your ‘wp-content/plugins’ folder on your webserver</li>
<li>Upload the folder ‘postlists’ with all files to ‘/wp-content/plugins’ on your webserver</li>
<li>Activate the plugin “PostLists” through the ‘Plugins’ menu in WordPress</li>
</ol>
<h3>WordPressVersions</h3>
This Plugin works fine with WordPress Version 2.3 and all higher Versions.
If you use a lower WordPress-Version or WordPress-Mu, please read this: 
http://www.rene-ade.de/inhalte/wordpress-plugin-postlists-wordpress-versionen.html
<h3>Extensions</h3>
You can download PostLists-Extensions here to add more functionality: 
http://www.rene-ade.de/inhalte/wordpress-plugin-postlists-extensions.html

PostLists

This WordPress plugin provides placeholders for configurable dynamic lists of posts. The placeholders can be used in posts, pages or widgets, and will …

Marzio Carro

Adds categories and tags functionality for your pages.
This plugin addsthe ‘post_tag’ and the ‘category’ taxonomies, which are the names of the existing taxonomies used for tags and categories the Post type ‘page’.
This enables the categories metabox and the tags metabox in the New or Edit Page interface.
The plugin has no settings, does not alter the database and only uses hooks to 
achieve it’s goal. It works perfectly fine with Multisite installations.
This plugin WILL NOT add any display of categories or tags to your template files.
Plugin’s website: <a href="http://technotes.marziocarro.com/category/wordpress-plugins/" rel="nofollow ugc">http://technotes.marziocarro.com/category/wordpress-plugins/</a>
Author’s website: <a href="http://technotes.marziocarro.com/" rel="nofollow ugc">http://technotes.marziocarro.com/</a>

Category Tag Pages

Wonderful functionality

Yes, it works. Uses very few lines of code and it's a simple and safe solution to have categories and tags in pages.

It works

Adds categories and tags functionality for your pages.

PostLists vs Category Tag Pages