PPC is still a very profitable way to earn $ as an affiliate. As you learn through "free" methods, be sure to learn how to write good ads. Choosing the right words caneither make you money or cost you a lot of money. You want to put a lot of powerful value in your ad. This way you are avoiding the riff raff...You could also include the price of the item you are promoting. That way your leads know up front they will need to buy something and it will turn the freebie seekers away. Tip: If you are struggling with what to write on your ads, do some searches and see what sticks out to you. Remember, you don't need to reinvent the wheel again. Good luck!
1) Go to this link to get keyword ideas and keyword activity on google https://adwords.google.com/select/KeywordToolExternal 2) Separate keywords broad match, phrase match and extact match. 3) Set your campaign budget to prevent overspending 3) start off with bidding only around .50 cent and slowly increase when you start getting sales