There are many options available on the internet to earn money fast online online. But most of these methods or ways require some initial investment. Without doing any investment there is very little chance that you can earn money online. The minimum investment that you may need is the cost of your website domain and hosting. Without a website it is difficult to do any good online business.
You may say that there are many adsense sharing websites on the internet like hubpages, where you can write articles and can, without the need of a website. That is true but in that case you don't have the full control on your own articles or pages. You have to follow their rules and may experience some delays in posting your articles etc etc.
What i recommend to my readers and friends is to use the blogger blog. It is free and you can get one just by making an account. You can choose the name of your own interest and can start your work within minutes. This is the great way to make money fast online. You must use you google adsense account with your blogger and should display your google ads on your posts.
It means that by using the blogspot and adsense, you will have a full website under you full control where you will be able to post any thing you want and will get the full rewards. But keep in mind few things:
First main thing is that you should always use the fresh and unique content on your website. Do not copy others. Second thing is that use one post per page on your blog. Third thing is that promote each and every page of your website and try to get as many backlinks to them, as possible. Sooner, you will be getting some good related traffic to your blog and you will be earning passive income from the google adsense.
So go ahead and get your blog now and start earning :-)