This is pretty sneaky and lame. You've probably run across sites that register a domain name that is a typo or a common mis−spelling of a popular site. Most of the time this happens it's a sex site. It makes you wonder, does the guy that thought that up actually get more customers that way?
But anyway, today I typed Amaon.com by accident instead of Amazon.com. I knew something was wrong but it took me a moment to figure it out because Amaon.com is trying very hard into fooling you into thinking you are actually at Amazon.com.