Shepherd - 2:11 am on Feb 9, 2013 (gmt 0)

Because as I said many will use proxies, and you will never know who linked to you.

any visitor not from an approved link gets redirected.

If a news website writes an article about you are you going to charge them too

A blog

facebook?

yes, yes, yes, you want to send someone to my content you pay, otherwise don't send them. simple enough.

If the link stopped working I would remove it and no longer send you FREE traffic

and your users would no longer have access to my content/resource, a loss to you or you would have never linked to my content/resource in the first place.

Alternatively, I could link to google.com/q=yourURLhere

and it would be redirected as it would not be an approved link...