On Thu, 08 Jan 2004 22:32:06 -0700, Susan Erickson
wrote in Message-Id: :

Some of them were hijacking pictures from copyrighted sites [...]
sending each visitor thru to the site [containing the pictures]
and tying it up.

What you describe as 'hijacking' is known as linking. It provides a
means of overcoming duplicate content and copyright infringement on
the world wide web and is one of its fundamental concepts.