One of the things you find when you use a tool like 103bees to check your incoming search engine traffic is that some people find your blog as a result of both them and you misspelling words.
I remember early in my blogging that I had one post that was getting quite a few visitors every day and I couldn’t work out why until I looked at my stats and found that one of the people commenting on the post had misspelled Melbourne (the city where I live) and that every person hitting the page had typed the same spelling into Google. I was the one of three search results for that spelling and as a result had a pretty decent chance of getting the visitor.
The poor spelling of the reader leaving the comment drove traffic to my blog.
I’m certain that this happens every day for many bloggers – however I also know some webmasters (and one or two bloggers) who purposely exploit the misspelling of search engine users. They write articles with spelling mistakes in them on the keywords that they are trying to attract traffic for.
This isn’t really my style (my goal is to build quality into my blogs – all misspellings and poor grammar are purely accidental!) but Microsof adCenter Labs have developed a tool that those wanting to explore misspellings might want to use – their Keyword Mutation Detection Tool in which you can input a correctly spelled keyword and find out how readers commonly misspell it.