If you have restructured your website before you know the problem of making sure visitors go to the right place to update bokmarks. Below is an easy way to redirect visitors to another page or directory.
Create a .htaccess file in your web directory with the following line:
Redirect /somedir/page1.htm http://yourdomain.com/somedir/page2.htm
This will redirect anything that goes to page1.htm to page2.htm.