What is the way to earn money on the internet

I have tried adsense, adbrite, payper click but I have not pay per post coz my site dont have page rank yet.
Here are some ways to earn money online:How to earn money online with PTC

How to make Money Online Without any Investment
How to Use Yahoo Answers to Make Sales
How to Use Free Blog to Earn Money Online
Have you tried this? I joined the affiliate program and I've made $175 in 3 weeks :)Why not give it a go, it's completely free to sign-up and you get a really good FREE ebook on making money on eBay
How to Get Traffic to your website Effectively
How to Increase Articles Page views to get traffic
What are the top few places to register a domain name? I'm looking for statistics on traffic, website builders (that don't look too generic), email

How can I increase visitors on my blog and earn some money

know how to design my blog and everything. What is the second step I should do to make my blog to earn money?.
How to Use Free Blog to Earn Money Online
http://www.ehow.com/how_4861482_use-blog-earn-money-online.html

Just running ads won't do if there are no visitors, so first work to increase traffic, update your blog daily with very qualitative content, information so that more user become your subscriber. Let your blogs posting entice your blog readers; improve its look and feel, along with quality content add images, videos. Customize your blog by adding new widgets, plugins.

Put ads on it and advertise your blog by writing comments to others blogs and what ever you can do to tell others the address to your blog

You answered your own question. You said you wanted to make it "informative as well as interesting too". Do that, and the visitors will come.