[rjb]

They are just "captcha like". I believe the idea is to to make ads bidirectional. Instead of just clicking a banner ad, a user would enter, say, a coupon code for example.

[thesnider]

I'm sorry, I don't get it then -- is the plan to force me to enter one before visiting a site? Or are they just display ads with text fields?

[BadCookie]

You can't see whatever content it is that you are trying to access until you enter the code. The examples on their web site make it pretty clear: http://doublerecall.com/

[tomjen3]

Am I the only person who already hates that company?

I mean it is a very profitable idea, but ads are annoying enough already.

[thesnider]

Ah, ok. Missed that. I knew it had to make sense somehow, just not sure how :)

[rorrr]

I don't see how any sane site would block its content with an ad.