Have you ever heard of hubpages, is it good to earn money?

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Have you ever heard of hubpages? hubpages is a posting website,like blogs site. You can write your ideas freely in it, and the most important is that you can add google adsense in it. I have already add my google adsense code in hubpages. But I can not see any changes in my google adsense account. I don't know whether it is legit and honest? Do you think it, Please tell me your points.