Shutterstock
Shutterstock grew tremendously during the past few years and for many photographers holds strong first place as a best seller. Great thing about Shutterstock is that most photographers start seeing sales right after their images pass the review, which gives them a motivation to upload more.

Dreamstime
Dreamstime is one of the leaders among stock photo agencies and one of the best agencies to join if you are new in stock photography business. "My Account" section is very rich in features that give you various options of promoting your content.
Canstockphoto
Canstockphoto is one of the websites that every now and then surprises you with bigger sale. In addition to that upload process is very simple as there are no categories. Both these things make Canstockphoto worth joining.
Adobe Stock (Fotolia), Getty Images (Istockphoto), Bigstockphoto
All four agencies are giants in stock photography world and if you are serious about stock photography you need to join them. Fotolia is bought by Adobe, Istockphoto by Getty Images, and Bigstockphoto by Shutterstock. It seems like this only secured the future of these already popular websites.
Other Good Stock Photo Agencies
All three agencies are giants in stock photography world and if you are serious about stock photography you need to join them. Fotolia is bought by Adobe, Istockphoto by Getty Images, and Bigstockphoto by Shutterstock. It seems like this only secured the future of these already popular websites.