Did you not think to have used the search facility to find the over 100 threads or so asking the same question?
A little over $1600 in a month. Overall I've earned over $10,700+ AdSense is great but you need a lot of traffic for it. I've earned over $500 dollars in just 41 days after starting a drop shipping website that sold health powders. It all depends on how you want to earn and what works best for your lifestyle. If you like writing and don't care about monetizing (Like Steve Pavlina), Adsense is great.
Nice reply. The amount what others earning can neither benefit the thread poster nor the readers. Simply time loss thread!