The fact that I know of several people here that make on average a thousand dollars a month from Adsense alone is enough for me.
Also, I'd be writing somewhere on the web anyway, and I feel as though my work is worthy of pay; and Hubpages is the single best website that I have seen towards that end. Hubpages allows me to write "most" of the things that I want to write with few rebuttals or problems. There have been issues, but this site is much less restrictive than some others that I've seen. It's a business, of course; and if you do wish to make money writing, then the money is in product articles, and problem/solution articles. Make the article pretty, include various capsules, do some good research; and let it fly.
This ain't no make money overnight thing, but money you can make, and after you create a hub and do some minor promotion, you're mostly done, the thing could make you money five years from now when you are sleeping, eating, or on vacation.