This plugin adds up to four new buttons / links to the WordPress Editor panel. You can select to add a quicktag to easily insert: 
Amazon item links 
Amazon product searches 
custom span class 
custom div class
The settings pane allows you to enter defaults, as well as your own Amazon associate ID.

David’s Ultra Quicktags

Adds new buttons to the Editor window (Amazon Links, Amazon Search, etc.).

etiquetags

This plugin helps you to use etiquetags editor in your WordPress Blog.
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etiquetags is a full-featured, clean, fast and easy-to-use HTML tags editor.
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With etiquetags you will be able to create automatically lists, tables, link, objects …
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Lots of features are included in this new version: the quotations tool, the frequent classes menu, the CSS button … and there are others already present in the first version: footnotes tool, fast link tool and more …
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myetiquetags

A simple plugin to use etiquetags editor in wordpress blogs

David’s Ultra Quicktags vs myetiquetags