Aaron Barnhart, Mr. TV Barn himself, suggested retaining listings for defunct sites.
When you click on the link, you'll be taken to the Internet Archive page for that site.

Bill's David Letterman Pageby Bill Lehecka
Bosco's San Fran Reportlog of the May 8, 1996 SF show
Brilliant Careers - DLby Salon Magazine
Calvert DeForest - A Tributeby Kevin Nagle - Calvert in action
Calvert DeForest.comCalvert's official site
DaveCon 2002Brady's pictures -- June 20, 2002
Dave's Big Showby Annie
Dave Thinks I'm a GooberDoug Mueller's brush with greatness
David Letterman Speaks Swedish...and some German
DDY's Late Show Fan Page (Internet Archive)or search on the original URL
DDY's Late Show Fan Page (my own archive)my page as it looked on June 23, 1997
Dedication to Dave's Momby dlettermaniac
Episode Guide - First Yearby Tim Veatch - Aug. 1993 to Aug. 1994
Hoosierland Salutes David Lettermanby Traci Gilland, a long-time fan
I Met David LettermanLisa Moretti's brush with greatness
Jen's Pagevideo captures - some off-topic
Karyn's Page O' Dave Linksby Karyn
Kimberley's David Letterman Pageby Kimberley Sitterley - magazine articles
Leonard Tepper Fan Club Pageby Smith 2003
Letterkid's Letterman Pageby Jennifer Sikes
Marilyn's Pathetic Pageby Marilyn Sargent, and certainly not pathetic  
The David Letterman Museumby Dave Gal
Letterman-O-Rama!The Late Show with Laurence Mixson
Limo Lady Con '98Limo Ladies, Donz5, Hendren and Timko
My Trip to See Dave #1Kevin Nagle's August 19, 1995 trip
My Trips to the Edby Dan Page
Ptomaine's Late Show Pageby Brian W. "Ptomaine"
The Dave CaveAaron Barnhart on #1 fan Don Giller
The Late Show ExperienceBenny Hsu's June 19, 1996 trip
The Rest of David Lettermanby Marshall Hays
Wayne Haseltine's Pants Across Americathe epic journey of his britches
   This links table is an original compilation © by David Yoder.  All links worked on 2/24/12.