"I don't give a damn for a man that can only spell a word one way," Mark Twain once spewed about spellers. Unfortunately, search engines aren't as liberal in their outlook. Ask Jeeves will, for example, prod you to consider that you might have misspelled your question if it can't find what you're looking for -- but doesn't offer much other than that passive-aggressive form of "help."
SearchSpell to the grammatical rescue. Just type in the question you'd ask snooty Jeeves, and SearchSpell will give it the once-over. If your spelling is, er, colorful, SearchSpell provides you with alternate spellings.
For example, I tried it for this sterling example of the American school system -- "wear can i akcoostic speekers?" SearchSpell returned over 25 possibilities with various spellings, topped by the correct one: "Where can I get acoustic speakers?" In addition, you can click on each word in every variation of its suggestions, and it will take you to dictionary.com's definition of the word. Along with the suggestions on the left side of the result screen are several pre-filled search forms for GoTo, HotBot, Google, and other search engines -- pre-filled, that is, with your search request, spelled as correctly as any home-skoolded kid could do it.