Blocking Website

 Mostly In Colleges/schools or in Offices they do this Learn How ....

Steps:

1] Browse C:\WINDOWS\system32\drivers\etc

2] Find the file named "HOSTS"

3] Open it in notepad

4] Under "127.0.0.1 localhost" Add 127.0.0.2 www.orkut.com , and that site will no longer be accessible.

5] Done!

example :

127.0.0.1 localhost

127.0.0.2 www.orkut.com
"www.orkut.com is now inaccessible "