Andreas Hecht

Creates a new and simple to use widget that adds a tabbed sidebar box with recent posts, last comments, categories, popular posts, a tag cloud and the archives to the sidebar. No Options. This widget is perfect for light-colored themes.
To use the widget, go to Appearance -> Widgets and add “AH Sidebar Box” widget.

AH Sidebar Box

This widget adds a tabbed sidebar box with recent posts, last comments, categories, popular posts, a tag cloud and the archives to the sidebar.

Barry Kooij

Never5

With this plugin you can add tags to pages like you can to posts by default. The plugin also adds a new widget to display the page tags.

Page Tag Cloud

This plugin allows you to add tags to pages and display them in a tag cloud widget.

AH Sidebar Box vs Page Tag Cloud