Project Gutenberg: White Fang - In plain text, HTML, or as a zip file of either. - http://www.gutenberg.org/etext/910
White Fang - Chapter-indexed paged HTML text. - http://www.pagebypagebooks.com/Jack_London/White_Fang/
The Literature Web: White Fang - Chapter indexed HTML of the text, with search feature. - http://www.online-literature.com/london/whitefang/
ClassicNotes: White Fang - Summary and analysis of the work. Includes a biography, message board, and background information. - http://www.gradesaver.com/ClassicNotes/Titles/white