Internet Explorer 8 Video :
How To Add a Site to Restricted Sites

Step #1: Click on Tools in the top menu bar.
Step #2: Click Internet Options.
Step #3: Click Security tab.
Step #4: Click Restricted sites.
Step #5: Click Sites.
Step #6: Type a website address to add.
Step #7: Click Add.
Step #8: Click Close.
Step #9: Click OK.

Result: A website has been added to the list of restricted sites.

This action allows you to increase your computer's security while browsing the internet by allowing you to add a website to the list of restricted sites.