Did you say... "ffEQuency" ?
Frequent typos and misspellings :
ffEQuency ffEQunecy fEQuency rfEQuency tfEQuency cfEQuency dfEQuency gfEQuency bfEQuency frEQuency ftEQuency fcEQuency fdEQuency fgEQuency fbEQuency ffEQiency ffEQyency ffEQjency ffEQuemcy ffEQuehcy ffEQuebcy ffEQuendy ffEQuenvy ffEQuenxy ffEQuenct ffEQuencu ffEQuench
Webmasters: cut and paste this list of common typos for your keyword search engine optimisation needs. You can also click any of the words above to generate more typos.
Why are misspellings and typos important for you ? Read the introduction about the Typo Trap