Question on terms for annoying web ads (1 Viewer)

[David Baranyi]

I need help in understand what the following terms relating to annoying web ads mean:

a) pop-up
b) pop-under
c) interstiles
d) adware

I would really appreciate to see visual examples of what these ads look like.

 

[John*Jones]

pop-up

pop-under

interstitial

adaware (it's software, not an ad per se).