I created several hubs the past year and I added adsense to all of them. There was only one that took off after a few months. It is not making much in fact it is making less than $10 per month with about 1200 visitors per month. One thing I know is that the more content, and the more videos it has the more visitors it will get. Plus I have answered all of the questions from the comments so it is steadily getting more visitors every month. I think the bottom line in hubpages is a lot of content, videos, answer questions equals popularity and in turn more visitors. Just thought I'd share. Good luck on your golas.
Hi there, Once you accumulate some money for this I would suggest going into the micro website niche. I am seeing similar successes in this niche.