As this department continues to generate special-interest groups, the monthly addendum increasingly plays the role of a bulletin board. The first couple of announcements this month are for Core War fans. Readers who have sent for the “Core War Standards” document from Mark Clarkson, director of the International Core Wars Society, will have to be patient: a fire in the Clarkson home in January has caused a long delay in filling requests. Competitors continue to line up, however, for the second international Core War tournament, to be held in Boston this fall. Watch for details later.