Huge Profits with Affiliate Marketing:

Masking refers to the process of hiding your affiliate link in
the address bar. For example, when you go to Nicole
Dean's Income CPR site for information on how to sell
more of your information products you will see my
domain, http://InfoProductJumpstart.com, in the address
bar instead of Nicole's domain. The idea is that I want my
prospects to think of my domain instead of hers when they
are thinking about this topic. This builds trust as well,
when your people see the same URL in the address bar as
the one you have sent them to.