Quite often people misspell keywords when they perform their searches in Google and other search engines. Take Googleerth for an example, where the most likely correct keyword should have been GoogleEarth. A quick keyword analysis shows that 862 daily searches are made for Googleerth, giving Googleerth a KEI (Keyword Index) of 1.110.679.

A good web designer will include misspelled and uncommon spellings of words on a webpage as people use them as their search words. In other words, if wanting to target the keyword GoogleEarth, one should also aim for Googleerth, as (obviously) a lot of people frequently misspell the intended word.

Hopefully you will find high-quality misspelled keywords with the same potential as Googleerth