Screen Reader	Website	Free/ Commercial
Non Visual Desktop Access (NVDA)	http://www.nvda-project.org/	Free
Screen Access For All (SAFA)	http://www.nabdelhi.org/NAB_SAFA.htm	Free
Hal	http://www.yourdolphin.co.uk/productdetail.asp?id=5	Commercial
Supernova	http://www.yourdolphin.co.uk/productdetail.asp?id=1	Commercial