How to do SEO on an expired domain? Should building content and new links help?

Is it necessary that I build landing pages for both PPC campaigns and organic search separately. I just recently heard that some PPC networks doesn't allow to have same landing pages.

One of my site is getting pretty much targeted quality traffic per day from organic searches most and also referral traffic from social media accounts. So, I think its time to monetize it by selling banner spaces of my site? How should I do it? And also please suggest me some good ad networks which pays are high.

How can I determine the PPC rate which I should pay for each click on my keyword? I am starting a new site. And I am thinking about starting a Google Adword campaign to promote it.

Is buying email lists from my fellow bloggers is a good option?

How can I write effective content for affiliate products that can get sales good? I am looking for a format or general way of instructions to write content.

How to get traffic for my blog specifically from USA?

What do you guys prefer most one single site or multiple sites to earn money? Share your thoughts.

I want to display visitors on my blog any suggestions?

Suppose if I am about to start a PPC campaign then which is better? Should I go for Graphical Ads or Text Ads. I am about to try Google Adwords.