Keyword Marketing Buddy is a free tool that lets you compare the popularity of a number of Mots-clé at one time. You enter in a list of Mots-clé, and the Buddy will automatically suggest a number of related Mots-clé, and will rank by popularity. The keyword output also includes a text box with a comma-separated list of keyword, popularity values so that you can easily import the list into a spreadsheet or use other keyword analyzer Outils.