Did you say... "letters" ?
Frequent typos and misspellings :
letters lettres eltters leters petters metters ketters lerters legters leyters letrers letgers letyers lettees lettets lettegs lettefs lettere lettera letterd letterw letterx
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