I offer you an insight into few microstock sites where you can sell your photos and earn the money.
The amount of money you earn ofcourse will depend solely on you, above all, it will depend on how high-quality and original photographs will you be able to offer, as well ofcourse of your portfolio size. At beginning perhaps it will be just 1$ per week but if you take things seriously and upload images often then quickly it may reach several tens of dollars per day and more.
I suggest you upload images at once in several microstocks. Because make a large profit from one microstock in beginnings will be very difficult. Before you upload your images on microstocks I suggest you add titles, descriptions and keywords to your images, after that you will no longer need to enter the fields, they will be filled automatically. Great software fot that is Adobe Bridge.
If you are a total beginer in microstock I recommend you don't stop this thing after first rejected images, but look at microstock most popular works, compare them with your own, and try to shoot something like that. Good luck!!!
* Medium amount of sales
Model release - You need to fill this, upload and attach to all your images if recognizable human faces is visible. Valid for all agencies
Property release - You need to fill this, upload and attach to all your images if they show objects covered by copyright. (e.g. photographs, drawings, in some cases real estate, interior, etc.). Valid for all agencies