Chess: "What Chess Owes Bobby Fischer," by Peter Worthington at FrumForum. My far weirder chess article "Searching for Bobby Fischer's Platonic Form," which I have to admit has nothing to do with Fischer.
Jeopardy: "Paging Dr. Watson: IBM to apply Jeopardy! victor's analytic skills to medical diagnoses," by Larry Greenemeier at Scientific American. "What Watson Can Learn from the Human Brain,' by Jonah Lehrer at Wired.
Catan: Can be done with knights now.