That all depends on what you're using. If you are only using internet Explorer, this article explains how to blocks sites in IE:
http://www.ehow.com/how_2178367_block-website-internet-explorer.html
If you are using Firefox, you have to use an external program. Programs like ZoneAlarm or other firewalls can do this, or you can buy an internet filter program like Net Nanny that's made for blocking sites. Of course, these programs work for all internet browsers, so they are probably the way to go.
Chat with our AI personalities