Pay per play ads

[Firstly, i thought this is the closest section so opening this topic here]
I have just heard about PPP ads, pay per play, with every visitor a 5 second sound is played and site owner is payed for that.
Does this really works, have someone really tried any such advertising program,or putting such ads is waste of time.
If tried can someone tell any genuine website which is available to website owners world wide.
Share your thoughts, experiences and opinions…

See original post by khu84