In a previous article, (Victor) said:
I have a friend that is purchasing a plane and will start a business
of tow banner. He said I could fly the plane for him without been paid
, this way I can get many hours on my logbook.

Is it legal to do banner towing on a PP license without receiving
payment for it?

"hours in my logbook" *is* payment, according to FAA prosecutions of
people doing something similar (glider towing is the case I remember most
clearly).

--
Paul Tomblin http://xcski.com/blogs/pt/
When the revolution comes, we'll need a longer wall.
-- Tom De Mulder