First get a product. second get a site to sell product and collect email third email the list similar offer or special offer every 3-4 months MAX if it works out for you then..... fourth.... repeat
I dont know if there is one easy way to find success with adwords PPC. You will have to test and become familiar with the system and rules. There is a lot of free info inside the service itself to help you get started but for advanced techniques it will take time,testing and the proper tools.
That's my advice too- get their free information first and then keep reading on DP ... you'll find some nuggets or leads.
I have been reading The Ultimate Guide to Google Adwords by Perry Marshall and Bryan Todd. Its really helpful and very simple to read and understand. However, once you start implementing, its all about trial and error and thousands of questions and issues come up constantly.
I think you should learn the skill of using adwords first rather than how to make money online, read the guide from GG and try their forum