Say you are doing Auto Insurance and your landing page has a zip code submit and "Get A Free Quote Now!" button. Is there a way to pass over that zip code to the offer LP?
It depends on the advertiser. Assuming you don't want to just ask them, you can go to the offer LP and view the source and get the the field name of the zip and just do something like:
i cant even get them to track correctly w/ prosper and ppv. but yes it depends on the advertiser. you should be able to ask your AM which offers are pre-poppable
All the networks that use "Direct Track" and "Link Trust" tracking platforms have already support for prepopulating LP forms.
To be safe ask your AM, tough some AMs don't even know what is it.
There are only a few offers that allow it and when they do they're usually marked and instructions are in the description / special instructions (usually by appending additional code onto the end of the link).
On the same domain, yes. Otherwise it is cross-site scripting which would require an exploit to execute.
Imagine if you could open someone's MySpace in a 1x1 iframe and use javascript to post whatever you wanted. This sort of mass attack would be extremely difficult to defeat because the all the inbound traffic at the server would look natural; coming from different ip addresses.