Glossaries Law.com Legal Dictionary Searchable with cross references links. Nolo: On line Legal Dictionary Nolo Press publishes & sells Self Help books like How to Form a corporation, Write you own Will,etc. I have used several of their books over the years. One Look Dictionary Search Not a specific Tax or Law dictionary, but a great on line dictionary Short glossary of IRS Terms From Kerry M. Kerstetter, the Tax Guru. This guy is a man after my own heart and philosophy. Yahoo Tax Glossary A good basic glossary. Also has many links to Tax Forms, Tax Tools, etc.