And when they come to life, there's no waiting for images to load. Users can be bombarded instantly with sight, sound, theme music - just about anything an advertiser wants. It's a drive-by. It's an immediate impression. Wary of offended visitors, Unicast builds in some safeguards.
Every ad contains a line with instructions on how to quickly kill it.
And limits are placed on the background programming to keep people from getting stuck with the pop-up exploding over and over because of their movements within a site. Everyone wants to protect relationships with the user. They want better content to make the relationship even stronger. You don't want to drive people off. Doing so produces pleasant chords.