Wikipeda: Mandrill (New Window)
Shows conservation status, a distribution map of the small area where mandrills exist in the wild, several pictures and interesting mandrill information.
Phoenix Zoo: Mandrill (New Window)
Concise facts about the mandrill, Mandrillus Sphinx.
San Diego Zoo: Mandrill (New Window)
Nice information about the mandrill. This site has a mandrill video, some short facts, more extensive mandrill information and a distribution map.