Search, Spelling and the Long Tail

A post at passing notes, threadlinked above, brings up the somewhat famous, and apparently, quite mythical Cambridge University study that showed, that provided the first and last letters of a word were correct, people can read it just fine. Try this: ""I cdnuolt blveiee taht I cluod aulaclty uesdnatnrd waht I was rdgnieg! The phaonmneal pweor of the hmuan mnid. Aoccdrnig to a rscheearch at Cmabrigde Uinervtisy, it deosn't mttaer inwaht oredr the ltteers in a wrod are, the olny iprmoatnt tihng is taht the frist and lsat ltteer be in the rghit pclae. The rset can be a taotl mses and you can sitll raed it wouthit a porbelm. Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe. Amzanig huh? Yaeh and I awlyas thought slpeling was ipmorantt."" This lead me to thinking about misspellings in general, how it affects