Ricontiamo :

Aside from blogging and online life coaching which are cool ways to make money online, there are still more. If people appreciate your flickr pics, maybe you are destined for photographic greatness or maybe for a few extra income. Though it may never be easy to get your photos out of the public because of the tremendous amount of competition, yet it also means it might be an easy way for you to build up a secondary source of income. You can try uploading and market your photos in Fotolia, Big Stock Photo, Shutterstock and Dreamstime.