YOu can learn forum posting and some content creation services , easily because they dont want any special skills.
Forums like DP are great for picking up useful ideas and skills. Just don't fall for these cr@ppy get rich schemes and ebooks across the web which are a complete waste of money and time.
I doubt anybody will give you full advise on how to make money online because it's a time-consuming task of self learning. I have read many e-books. My tip to you would be to research the topic you are interested, do a feasibility study on it. Work out if there is money to be made. The best way to make money is through publisher programs such as Goggle Adsense. They have many tips on their website. https://www.google.com/adsense/login/en_US/?gsessionid=yfoZA6AnU8eJglWIGaMKdw There are many publisher programs available so look around, research a little. Good luck!