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Aoccdrnig to a rscheearch at an Elingsh uinervtisy, it deosn't mttaer in waht oredr the ltteers in a wrod are, the olny iprmoetnt tihng is taht frist and lsat ltteer is at the rghit pclae. The rset can be a toatl mses and you can sitll raed it wouthit porbelm. Tihs is bcuseae we do not raed ervey lteter by itslef but the wrod as a wlohe.

But this doesn't let you off the hook for a good authoring style, particularly in relation to spelling. Even though the human eye can read the above with relative ease,  we do know the words are wrongly spelled. To the reasonably-educated human eye, a transposed letter in a word can halt the flow of understanding as the brain thinks about the meaning of the mis-spelling. Interrupting the flow of reading means that the reader has an uncomfortable ride; and an uncomfortable ride means that your meaning and our reader's understanding can be confused.

So please use your spell-checker - offline if needs be - and then read your article carefully.