Links General
YouTube - Videos from Freeflyur - Full-length videos of episodes from 1983 to 1987 (so far, with later episodes being added regularly)
SoapNet's Ryan's Hope Message Board - A message board to discuss the show
Ryan's Hope: The Beginning - A Jack and Mary-focused website about the show's early years
Totally Kate: Ryan's Hope - A section of a Kate Mulgrew page with information on Ryan's Hope
Actors and Actresses
The Actress Marg Helgenberger - About the third actress who played Siobhan Ryan (no mention of her Ryan's Hope role that I could find, though)
The Children of Ryan's Hope - Pictures and information about the show's various child actors
Louise Shaffer's Official Website - About the actress who played Rae Woodard (mostly about her new career as a writer)
Michael Corbett's Official Website - About the actor who played Michael Pavel
The Official Ilene Kristen Website - About the original actress who played Delia Reid Ryan Ryan Coleridge Crane Coleridge
The Roscoe Born Homepage - About the second actor who played Joe Novak (no mention of his Ryan's Hope role that I could find, though)
Totally Kate! The Kate Mulgrew Page - About the actress who played Mary Ryan
Miscellaneous
The Incarnation Children's Center - A New York City residence for children with HIV/AIDS, at which the late Nancy Addison Altman (Jill) did a lot of volunteer work
The World of Soap Themes - See video files of vintage openings and hear the theme songs of many soap operas, including Ryan's Hope