The Little Black Book of Online Business: 1001 Insider Resources Every Business Owner Needs

35.4. PHOTOGRAPH LICENSING

You can also license photographs from several stock photography companies. Licensing for commercial use can cost as little as $1.00 for a low-resolution photo—or can even be had for free in some cases (with some restrictions).

http://www.photodisc.com/

http://www.shutterstock.com/

http://www.istockphoto.com/

http://www.fotosearch.com/

http://www.comstock.com/

http://www.photos.com/

http://www.hemera.com/

http://www.sxc.hu/ (free)

http://www.freefoto.com/