With this plugin you can add a list of links to posts having the same tag(s) of the current post.
Plugin Tag: tagging
-

Tag With Hash
Automatically turn terms into tags if you precede them with a #. Nonexisting tags are created.
-
Semantic Tags
Semantic Tags plugin provides you everything you need to create and semantically markup your Tags.
-

Laiser Tag
Laiser Tag is an automated tagging plugin that uses the Open Calais API to generate tags for created content within a WordPress Site.
