Tip #3: This is business. It is not playtime.

You might be surprised by the number of people who complain that they do not
make any significant income from their AdSense campaigns. When we ask them
how many markets they're in or how many domains they have, their answer is
usually 10 or 15 markets, and only 1 or 2 domains per market.
Here is another truth that many people do not want to face head-on. You cannot
make any money with AdSense unless you are in a lot of markets. And within
those many markets, you must have many websites if you want to really
penetrate your niche market and make the most profits from that market. In
today’s world, you need to have a lot of smaller sites.
So how can you do all of that?
Well, you cannot, unless you first address some important issues.
In order for you to accomplish all this work, you need three things:
1) Procedures
2) Achievable Goals
3) Help