Andy Charrington

Easily display page specific links on any page or post by quickly adding a link directly from the add/edit page/post screen.
Delete links by clicking the trashcan next to the link.
Supports adding URL, name, target and description.

Add Links to Pages

Add Links to Pages allows you to add page specific links and have tim displayed through a widget.

dynamick

Using this plugin, you can display a text widget for any specific category and/or its sub-categories or for a specific tag. For example, you want to show different sidebar banners based on different category. It is easy using this plugin. Just create a new widget and select the category or tag.

Category and Tag Specific Widgets

Display widgets for specific categories or tags.

Add Links to Pages vs Category and Tag Specific Widgets