Low Link

Low Link is an ExpressionEngine plugin to create links to entries in a quick and easy way. It uses the Wiki Syntax to find entries (by title or custom field) and it will create a HTML tag around the found item.

For example, say you have a channel called Thesaurus where the title of an entry is the word, and you want to link to words in that channel in other pieces of text. Just wrap the plugin tag around the text you want to apply the links to, use the Wiki syntax in that text (ie. [[A difficult word]] or [[Look up this word | But display this one]]), and Low Link will take care of the rest.