Hi Backyardgardener,
I can't think of anyone who would want to see adds, but if that is what you need to do to stay on the web, then that is what you need to do.* Personally I would rather not see the adds, but I can think of ones that would be worse with moving and flashing pictures.* Those are awful and I have been known to stop going to a site because it's so annoying.
Newt
When weeding, the best way to make sure you are removing a weed and not a valuable plant is to pull on it. If it comes out of the ground easily, it is a valuable plant.