Few best ways like Google adsense,online projects really helps you to earn money online. If you are a freelance programmer,web designer, copywriter or translator then following websites helps you to earn money online.
ODesk
We could see lots of sites helps us to earn money using online projects but ODesk is a one of the best site in this category.I Could see lots of good reviews for this site and so many people are benefited from this site.Using this site you can work from home and earn money hourly basis.Just go this portal then click How it Works link they are explaining clearly.
Elance
Elance is an another best site for online projects.It is a biggest networks around.And it got better project management system but there is no formal time logging and screen shots like you would find at Odesk.
Script lance
Another best site for online projects.We could see lot of work that can be found here.
also check sites like Guru.