Brian

ThemeBoy

Displays an interactive visual sitemap in admin. A nice touch for sites delivered to clients, and useful for managing a site as it gives a visual overview of all pages, tags, and categories.

Visual Sitemap

Display an interactive visual sitemap of pages, tags, and categories in admin.

maff

See the <a href="http://ailoo.net/2008/07/wordpress-plugin-datearchives/" rel="nofollow ugc">plugin page</a> for more details on the plugin.
All development is done on <a href="https://github.com/maff/wp-datearchives" rel="nofollow ugc">GitHub</a>. If you have ideas, enhancements, etc. feel free to fork the project and send a pull request.
For any issues please use the <a href="https://github.com/maff/wp-datearchives/issues" rel="nofollow ugc">Issue Tracker</a>.

DateArchives

A simple plugin for showing post archives categorized by date.

Visual Sitemap vs DateArchives