IAR: Building a Better Pop-Up Ad
CommFlash, from the California-based FCBA Group, is the latest version of the pop-up (or pop-under) according to the IAR, but its really just another name for 'interstitial,' which is an ad that's delivered between pages on a publisher's website.
Look for more of this 'in between pages' advertising in the future as advertisers and publishers try to become less invasive and intrusive and more integrated (had to try and get all of those 'hot' keywords in there), but don't look for them to replace pop-ups, and they really shouldn't be put into the same class as pop-advertising on the internet.