Check out this site.
This is one of those sites that won’t let you hit the back button to go back. Basically if you were searching for something and ran across this site and you didn’t like what you found, you wouldn’t be able to simply hit the back button to return to your search results.
I really hate when designers do this. It’s not user friendly and you aren’t going to increase any sales by not allowing people to use the back button. It’s usually just a designer “showing off” to the client.
And the user ends up with a bad taste in their mouth after visiting your site…and perhaps turns it into a blog post?