Try blogging and google adsense. Write an interesting article and try to drive traffic to your blog. You can place ad in your blog too.
Other way is by joining ptc, ptr, or survey...but it's RISKY, LOTS of spam...
try also freelancer site like elance, GAF, etc. they have lots of project to be done.

Build a website that focusses on fulfilling customers needs, do not focus on money first.

Invest in quality designs and marketing to build up your audience.

Research keywords, affiliate systems, PPC arbitrage opps, CPA...

This is an effective long term money maker... if you do things quickly then quality will suffer and you will not get profits easily.

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For fun money sell photos on stockphoto sites, paid surveys, etc

you can put the google Advertising on your website

I would like to tell you that according to my thinking your first idea is good one, I couldn't understand your second idea. Well I want to try blog but I don't know this proceedure that what I will have to do and how to do. Will you please tell me the full proceedure for your first idea. I will be very thankful to you. I will be looking for your response.

Another way to make money online is to look for freelance and crowdsource services that allow you to work remotely and provide your services over the net to clients around the world.