After looking around the Internet for decently priced royalty free photos, I found some great websites that offer FREE royalty free photos!

MorgueFile.com
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.

123rf.com *registration required*
Tons of free images, plus when you register for a free account they give you one free credit. 123Rf.com also offers $1 royalty free photos, click here for details.

FreeFoto.com
Free photos for use online, asks that you either link back to them or put freefoto.com on the photo itself.

Sxc.hu *registration required*
Over 335,000 photos available and 5 photos are added daily. A few of the photographers ask that you notify them before you use their photos publicly.

FreeImages.co.uk
Not tons of free photos, but free photos none the less.

FreePhotosBank.com
Nice website, easy to navigate but not a lot of photos for the various tested categories.

EveryStockPhoto.com
Many photos from various sources with Attribution License.

Fotolia.com*registration required*
Has around a dozen FREE photos of the day, FREE photos are very high quality large photos.

ADigitalDreamer.com
Large selection of quality free royalty free stock photos.

Textureking.com
Tons of good free royalty free textures to use for your projects.