I am about to setup an affiliate site using WP as the engine. I will be using Power Link Generator to cloak the links, but anyone else can just create a forwarding php file to do the same. (details elsewhere).
For my example, I will sell model cars
Here are my thoughts:
I would then use a link that resembles:
My theory is that Google will not follow the link since it is forbidden in robots.txt.
Additional protection could be created by using .htaccess to deny access to any of Google's ip addresses.
For PLG, I will not setup all the folders as above, but I will not call it the default 'recommends' either.
Well, there you have it! Please comment.