Some Tributes to Ray

• By John Markoff, New York Times Obituary
• By Peter Gacs and Paul Vitanyi, IEEE In Memoriam with a discussion of Ray's life and work
• The Lifeboat Foundation Memorial with a discussion of Ray's life and work
• Tribute by J. Storrs Hall of the Foresight Institute
• Tribute "Ray Solomonoff is no More" by Shubhendu Trivedi
• Organized by David Dowe, Monash University:
  the Solomonoff 85th Memorial Conference Melbourne, Australia, Dec. 2011
• Harvard Square Stories
  
  
  

Information Resources

• Ming Li and Paul Vitanyi, "An Introduction to Kolmogorov Complexity and Its Applications"
  Springer-Verlag, N.Y., 2008. Book includes historical notes on Solomonoff
  as well as a description and analysis of his work.
  
• Samuel Rathmanner and Marcus Hutter, "A Philosophical Treatise of Universal Induction"
  in Entropy 2011, 13, 1076-1136. A very clear philosophical and mathematical analysis
  of Solomonoff's Theory of Inductive Inference
• A history of Ray's Work is in the Wikipedia
  
• For a detailed description of Algorithmic Probability, see "Algorithmic Probability"
  by Marcus Hutter, Shane Legg, and Paul Vitanyi, in the Scholarpedia,(8):2572.
  
• For a detailed description of Algorithmic Information Theory, see
  Algorithmic Information Theory, by Marcus Hutter,
  in the Scholarpedia, 2(3):2519.