I found a wonderful article the other day that is just full of useful information on search engines and website optimization. You might take a look if this is something you have questions about. Its very interesting!
I also came across this great article by Google. Many people ask us about having an SEO (who looks shady) optimize their sites for search engines regardless of the things we tell them.
Here you can read from Google's own hand, all about SEO's and what to look out for.
Check out the other links on that same page to see more great advice and insite from Google!
