This one has a thesaurus built in but I'm really not sure I'm happy with it. I scraped it from the internet and if you select, say, "affiliates", it will give you suggestions like "associate". Or like "marketing" will return "advertise". I know it's better than no thesaurus at all. http://www.gimmeaniche.com/spinner/ What I want to know is does PAR get all those parts of speech right?