Can you read this?
Olny srmat poelpe can. Cdnuolt blveiee taht I cluod aulaclty uesdnatnrd waht I was rdanieg. The phaonmneal pweor of the hmuan mnid, aoccdrnig to a rscheearch at Cmabrigde Uinervtisy, it deosn't mttaer in waht 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 tghuhot slpeling was ipmorantt! if you can raed tihs psas it on!
Okay, this may be a little much but you may get the picture. People can overlook multiple misspellings if your core idea and concepts are solid. What does this mean for website owners? Don't sweat the small stuff - life is not a prargrpah.
If you are interested in spell checking your work anyway, here is the resource of the day:
www.spellcheck.net - Check whole pages of content for misspellings absolutely free