Foundation's Friends

Foundation's Friends, Stories in Honor of Isaac Asimov was a 1989 collection of short stories set in Asimov's universes, particularly the Robot/Empire/Foundation universe. The anthology was edited by Martin H. Greenberg, and contributing authors include Ray Bradbury, Robert Silverberg, Frederik Pohl, Poul Anderson, and Orson Scott Card.

Preface (Ray Bradbury)
The Nonmetallic Isaac or It’s a Wonderful Life (Ben Bova)
Strip-Runner (Pamela Sargent)
The Asenion Solution (Robert Silverberg)
Murder in the Urth Degree (Edward Wellen)
Trantor Falls (Harry Turtledove)
Dilemma (Connie Willis)
Maureen Birnbaum After Dark (Betsy Spiegelman Fein, as told to George Alec Effinger)
Balance (Mike Resnick)
The Present Eternal (Barry N. Malzberg)
PAPPI (Sheila Finch)
The Reunion at the Mile-High (Frederik Pohl)
Plato’s Cave (Poul Anderson)
Foundation’s Conscience (George Zebrowski)
Carhunters of the Concrete Prairie (Robert Sheckley)
The Overheard Conversation (Edward D. Hoch)
Blot (Hal Clement)
The Fourth Law of Robotics (Harry Harrison)
The Originist (Orson Scott Card)
A Word or Two from Janet (Janet Asimov)
Fifty Years (Isaac Asimov)