Wikipeda: Springbok (New Window)
Several sections of information about the springbok including scientific classification information, a range map of the springbok depicting its south Africa habitat, and some other interesting facts such as its role as a national symbol of South Africa.
South Africa Online Travel Guide: Springbok (New Window)
This site has a couple of nice pictures of springbok and a small bit of information about them as well.
Meet the Animals: Springbok Antelope (New Window)
A fact sheet page about the springbok antelope, Antidorcas marsupialis.