Why host file option is not working for certain websites to be blocked?

[Anna]

I want to block some websites and have tried to do this by using host file method (C:\Windows\System32\Drivers\etc). Almost, all the websites, for what i inputted in the note pad (host file) were blocked. However, certain websites were not blocked, for instance, http://www.tamil.thehindu.com).

How these website can escape from this method. What I have to do to block these websites. Please, Help me..

Thanking you in advance for your kind help.
# Copyright © 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
# 102.54.94.97 rhino.acme.com # source server
# 38.25.63.10 x.acme.com # x client host

# localhost name resolution is handled within DNS itself.
#127.0.0.1 localhost
#::1 localhost
127.0.0.1 http://www.dinamani.com
127.0.0.1 http://tamil.oneindia.in
127.0.0.1 http://www.maalaimalar.com/
127.0.0.1 http://www.facebook.com/
127.0.0.1 http://ww

[Osei]

can you show me your host file