A New Visual Thesaurus - and this one's free

Programmer Kyle Scholz has released a web-based visual thesaurus along the lines of Thinkmap's slick, Java-based mapper of word relationships. Unlike the prototype, Kyle's "Visual Wordnet," which draws on the Princeton Cognitive Science Laboratory's "Wordnet" database, is built using only Javascript and Cascading Style Sheets, and - drum roll, please - is free to all.