any way to prevent pages loading in particular sites pop-up boxes?

banned them, so now they're selling my content in pop-ups

[stapel]

EpicLearning sells online education. For their algebra courses, they appear to be selling access to my (free) lessons. I banned them by referrer, as you can see when you try to click on their links on this page:

[epiclearning.com...]
("Purplemath" is my site.)

So they are working on getting around this limitation by changing the links from referrers to Javascript pop-up boxes, as you can see on this page:

[epiclearning.com...]

I've gotten no response from the WhoIs contact, which was why I resorted to banning by referrer in the first place.

Is there any way to prevent these pop-ups? I don't want to ban new windows in general; sites are welcome to link to me, for free, for supplemental use, and have my site open in a new window. But I would like to stop these EpicLearning guys.

Thank you.

Eliz.

[kaled]

By way of an alternative :-

Why not contact the website's credit card processing company. Explain that they are perpetrating credit-card fraud by selling free information that is not theirs. There is a very good chance that they'll get booted completely.

Kaled.