Astronomy 162: White Dwarfs and Novae
Short on text, but contains excellent images, diagrams and a table of the brightest white dwarfs
Online encyclopedia article from Wikipedia on these sub-stellar objects.
Chandra X-Ray Observatory: Brown Dwarf Stars
Introduction and data on brown dwarf stars.
Echelle Spectra for White Dwarfs
Contains final processed IUE SWP echelle spectra for all 55 hot white dwarfs
The Fate of Massive Stars
The origin and general characteristics of white dwarfs. High School level.