There are many ways to make money online. Here by i list out the ways to earn money through online. They are
1.Google Adsense
2.Affiliate Program
3.Blogging      
4.Sell products relevant to your blog.
5. writing article .
6 Reseller business
Among those I choose reseller business to earn money. Reseller is nothing but getting service from someone and then earning amount by getting commission from them. For this we need reseller account .I got the account from GoResellers.com here they provide two reseller plans you can choose one among them based on your requirements. I choose basic reseller plan using which i bought domain names, SSL certificates, web designing services and so on. After that i fixed high rate for those services and sell them .I earned quick cash through this method. According to me reseller business is one of the best way to make money online.