(I’ll try to keep this one updated as I find items.)
The Billy Graham Evangelistic Association has a memorial site for Ruth.
A. Larry Ross and Associates, Billy’s longtime personal publicist and spokesman, has photos, video, and more information.
RuthBellGraham.com expired in 2005 and is now a cybersquatter’s site, but its content is still available at the Internet Archive.
The Billy Graham Center Archives in Wheaton, Illinois, (not to be confused with the Billy Graham Library in Charlotte, N.C.) has wonderful photos, recordings, and documents.
Obituaries on Ruth Bell Graham include those from the Associated Press, Asheville Citizen-Times, Charlotte Observer, Time, Newsweek, The New York Times, USA Today, Washington Post, Los Angeles Times, Atlanta Journal-Constitution,News14 Charlotte, and other sources.