Google Adsense is the most popular and genuine way of making money online. Google Adsense is an advertising program that one can install on its blog/website and then it shows text, image and video ads on your website. When someone clicks on those ads, you get paid some money. This money can range from $0.01 to $10.00 or even more in some cases. You can see such ads on this blog as well.
In order to join it, you need to have a quality website that is rich in content and has original ( not copied) articles. If you are from Asian countries then the age of domain must be over 6 months.
If you meet these requirements, you can make an application to google to join adsense. They review application in 3 to 5 days. Once you have your account approved, you can start showing ads on your websites and start making money.
However, if you are serious about making money with adsense in long term then you must ensure that you follow the terms and conditions of google adsense as they are very strict with people who don’t follow the conditions. Any bad practice or fake clicks or paid traffic can result in permanent ban on your account. For bringing traffic on your website you will have to rely on SEO, organic traffic, promotion on forums, social networking websites etc only. You are not allowed to click on ads yourself and you are not allowed to buy traffic from other CPC programs etc.
If you follow their rules and continue to make efforts to promote your websites then you will soon start making hansome amount of money online.