Hi
I think if you read thru parking section, as well as use the forum search feature,
then you could find the answers to many of these questions.... some of which you should already know.
as is, the questions posed here, don't make much sense.
it would be in your best interest, to take the time to read the respective ppc platforms TOS and learn how it works for yourself.,
ads are automatic, related to the keywords of your domain.
ads are supplied by google, yahoo or whoever that ppc can get to provide ads for it
no, and no for last questions
imo...