I have just learned of an IE add-in that allows you to spell-check anything you type into a form/box on the web (like here!). It's called IESpell, and it's wonderful. Lord knows, I am a terrible typist so I was thrilled when my firm installed this tool on everyone's desktop. I have to do a fair amount of data entry on our website at work so it's been my salvation. (I just have to remember to use it!) I have seen people here say that they would like to be able to spell-check their posts, so I thought I'd share it here.
http://www.download.com/3000-2378-10208550.html
http://www.download.com/3000-2378-10208550.html