|Getting High CPM (Cost Per Mille) Rate|
You should have your own domain name, own hosting account; free blogs like on blogspot.com, wordpress etc drive a very low CPM rate. If you are able to drive visitors from first world developed countries the CPM rate will go up as the CPC campaigns are of high value there and henceforth your CPM will also be higher.
|Which Type of Website To Decide|
If you want to make a website then most important is type of your website. You can goto google.com/adwords and goto the AdWords tool where you can search for the highest CPC value keyword or www.spyfu.com/toplistall.aspx the list of the top keywords represent the highest CPM/CPC value keywords of Google so it will help you to decide your website's type.