You can Google pretty much everything you've asked.
What I will say is that it's pointless buying adverts if you're a new fish. People who buy ad spots are going to be spending a hell of a lot of cash on it. Stick to making websites.
If you really want traffic, go to
http://trafficholder.com/ or something similar.
I haven't used products like these myself because they're shady as shit. But if you want to dump $10-$20 into useless bot referrals, be my guest.