In order to better understand Google Adsense, get to now Google Adwords, the other side of the story. Those who earn from Google Adsene should know that all that money you are earning is coming from those spending money from Google Adsense.

Google Adwords Certification
Google’s learning center has a 9 part quiz series that will teach you not only the basics of Google Adwords, but also targeting, controlling costs, tracking performance and even managing client accounts. Each topic is presented by a series of videos that will explain everything you wanted or didn’t want to know about Google Adwords.
Visit the Learning Center

Getting Google Adwords Certified
After you’ve watched the videos, taken the 9 part quiz series and feel confident with yourself, it’s time to take the Google Adwords certification test. The test costs $50 and is held twice a month. Fortunately the test is taken online so you won’t need to fly anywhere to take this one. You will however need a good internet connection. There are no refunds for computer failure.
Register for the test

Why Should I Get Certified?
You will be awarded the Qualified Google Advertising Professional Logo, something that looks very good if you are personally involved in a business that uses Adwords. Add it to your resume as a proof or your qualifications, or just take it for yourself. Make sure that you really understand Google Adwords.