Getty Images
We offer high-quality, diverse and relevant stock photos, stock footage, stock music and editorial images for creative professionals. Search today.
http://www.gettyimages.com/

Shutter Stock
Shutterstock is the largest subscription-based stock photo agency in the world. Every day we add thousands of photographs, illustrations, and vectors to our outstanding collection of premium, royalty-free images. You can choose a 25-A-Day Subscription for the greatest savings (get 25 downloads every day — that's 750 each month) or select an On Demand Subscription for the greatest flexibility (use downloads whenever you need them for up to a year). Select the plan that's best for you, or choose as many different plans as you need, and start downloading today.
http://www.shutterstock.com/

SXC
Stock photography community - browse our huge gallery for high quality stock photos or share yours with others.
http://www.sxc.hu/

Stock Vault
Stockvault.net is a stock photo sharing website where designers and photographers can meet to share their images. You don’t have to sign up to be able to download our images, but we’d like you to do so anyway, just so you can gain access to our special features. All images on this site are free for personal and non-commercial usage.
http://www.stockvault.net/

Corbis
Corbis is a creative resource for advertising, marketing and media professionals worldwide, helping to bring creative work to life with the highest quality photography, footage and rights services. Corbis offers a preeminent collection of more than 100 million creative, entertainment and historic images, a comprehensive footage library, the world's deepest rights and clearances expertise and an award-winning media management solution, as well as empowering SnapVillage, an innovative microstock web site. Based in Seattle, Corbis serves more than 50 countries worldwide.
http://pro.corbis.com/

Morgue File
A place to keep post production materials for use of reference, an inactive job file. This morgue file contains free high resolution digital stock photography for either corporate or public use. The term "morgue file" is popular in the newspaper business to describe the file that holds past issues flats. Although the term has been used by illustrators, comic book artist, designers and teachers as well. The purpose of this site is to provide free image reference material for use in all creative pursuits. This is the world wide web's morguefile.
http://morguefile.com/

Fotolia
Fotolia is the first worldwide social marketplace for royalty free stock images, allowing individuals and professionals to legally buy and share stock images and illustrations. Fotolia offers the largest image bank of free and affordable royalty free photos and illustrations perfect for any medium, web or print. Photographers and designers constantly update Fotolia with thousands of new photos and illustrations each day, while photographers and designers receive commission from each photo sold and revenue from advertising on the free section.
http://us.fotolia.com/

IStock Photo
Join (it's free) the world's fastest growing stock library featuring the best photographs, vector illustrations, Flash files and stock footage.
http://www.istockphoto.com/index.php

Veer
See things in a new light. Hint at potential. Invent contexts. Create concepts. It’s what you do as a creative. It’s our goal at Veer, too. We want to help you break out of the grid, the list, the rulebook. To show you visual elements for design in ways that work. To filter out the obvious and the mundane, in our products and our presentation. To help you do the best creative work possible.
http://www.veer.com/

Free Foto
FreeFoto.com is made up of 124259 images with 163 sections organized into 3426 categories. FreeFoto.com is the largest collection of free photographs on the Internet.
http://www.freefoto.com/index.jsp

a Digital Dreamer
Free Royalty Free Stock Photography: Unlike other sites with free images, these are also royalty free.
http://www.adigitaldreamer.com/gallery/

Photos
Subscribe today for access to hundreds of thousands of professional royalty-free stock photos at one low cost with several subscription plans to choose from. Download our stock photos in 3 popular sizes, including high resolution. Order on the web or by phone with credit card, PayPal, fax, or mail.
http://www.photos.com/en/