NetMechanic Spell Check will spell check up to 5 web pages and e-mail you a link to the results.

You can Cut & Paste the text from your web page into SpellCheck.net.

SpellOnline allows you to Cut & Paste either plain text from your web page or the HTML source from your web page. SpellOnline also allows you to enter a URL to be spell checked.

Dr. Watson will spell check a web page, in addition to analyizing the HTML, verifying the links, generating word counts, estimating download speeds, checking search enging compatability, and checking site popularity.

If you only want to check the spelling of one or two words, the best thing to do is to lookup the proper spelling at Dictionary.com or Merriam-Webster Online.