spreeder - online speed reading application

i remember as a child in elementary school being asked to watch a short of film strip that would flash words along at a rate that felt too fast to read (and as a young boy i would easily become distracted and was unable to re-read or watch what i had missed).  apparently this same basic method has found it's way onto the 'net - http://www.spreeder.com is an online speed reading application where you can copy and paste text from a blog, news site or just about anywhere else you can imagine and have it flash words at a certain speed (wpm = words per minute).  very cool - i've started using it and am really enjoying it.  check it out