Be leary of people promoting this. Look and see if they are actually using it yourself. On every blogpost I could find on the subject I never could find 1 person actually running the ad.
Also srsly! The one thing I hate is when I open a website and BLAAMMMMMMMMMMMMMMMM my speakers !!! GREAT MY BABY JUST WOKE UP THANKS JACKASS.
Thats my 2 cents on PayPerPlay.