AVMA Care For Pets - About Cancer
   Cancer information for owners from the American Veterinary Medical Association.
   http://www.avma.org/careforanimals/animatedjourneys/pethealth/pethealth.asp#2

Bone Cancer
   Overview about treatment for bone cancer in dogs and cats.
   http://www.talktothevet.com/ARTICLES/DOGS/dog_bone_cancer.HTM

Cancer in Animals
   An overview of cancer and its treatment in pets. Covers chemotherapy in general, and a couple specific tumor types.
   http://www.carelife.com/cancer/animals/index.html

OncoLink Vet
   General information about veterinary oncology.
   http://www.oncolink.com/types/section.cfm?c=22&s=69

Pet Cancer Support Group
   An online support group for people who have or have had pets with cancer.
   http://forums.delphiforums.com/petcancer

Radiation Therapy
   Provides a brief explanation of the procedure, with photographs and FAQ. From the School of Veterinary Medicine at the University of Wisconsin.
   http://vmthpub.vetmed.wisc.edu/hosp_services/rt/default.htm