Need Advertising advise

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Ok, you guys are so helpful. Thanks to those who have responded to my earlier post, I now have a blog, link is on my profile page. Now I signed up with "adsense" for those who also have it, how profitable is it? And, are there other places I can post ads to earn $. I want to keep this a no adult clean page. I'm interested in crocheting, health, and legit. business. Thank you in advance.