A mechanism for eliminating spam (March, 2003)
What if a tree fell in the woods but . . . (February, 2000)
If astronomers faced the biologists' dilemma (August, 1999)
The Sentinel's Escape (July, 1999)
DNA as Myth (March, 1999)
The Gulls of Alcatraz 1998 (Winter, 1998)
Range lands for wealth seekers (September 1, 1998)
My Fellow Shadow (September 1, 1998)
Our deep poverty workers: do we keep them that way? (July 28, 1998)
A different approach to preventing software copying
Trees (Winter, 1997)