Yes. :) It's a slow process to earn money, though. I do this as a hobby during my free time when I am not working. I did some mistakes when I started, so I reviewed and corrected my hubs after some time when I don't get much traffic and income. Also, I have learnt that it will take some time (months and years) for the hubs to mature in google and gain the proper page ranking. If you can get your article appear on first page of google, you have better chance of getting good traffic and income. Most of the time, I did it with intuition and lots of good luck. :)
If you want to know more about your position, you may want to try the free trial version of "market samurai" software. It will tell you a lot on what to improve and where you stand now.
Hope that helps.