Cool HyperCard Sites
Jim Stephenson's excellent collection of stack reviews, interview, news and great HyperCard links.
A great collection of HyperCard and MetaCard resources from one of the language's most fluent practitioners, Jacque Gay.
HyperCard Resource Page
All things HyperCard, including the largest selection of HyperCard and HyperTalk links for programmers, teachers, students and enthusiasts in the world.
Dave Smith and the rest of the gang at DAS Works have been turning out top-notch commercial XCMDs for HyperCard for years, including the popular JOVIS database engine and ListTable.