Crippen and Landru: publisher of short story collections by top-flight mystery and suspense writers, classic and contemporary.
Kevin's Corner: the blog of fiction writer and outstanding book reviewer Kevin Tipple (who occasionally publishes some of my reviews).
A Guide to Classic Mystery and Detection: an essential reference for mystery buffs by Michael E. Grost, a brilliant and incisive analyst.
At the Villa Rose: the blog of the very insightful mystery fan Xavier Lechard.
At the Scene of the Crime: the blog of self-described "mystery addict" Patrick Ohl.
Hal White: the author of the very entertaining and recommended collection of impossible crime stories The Mysteries of Reverend Dean.
The Golden Age Mystery Forum: a lively web group for fans of mystery and detective fiction.
The Short Mystery Fiction Society
Futures Mystery Anthology Magazine
King's River Life Magazine: Mystery Rat's Maze
Jenny Milchman's Home on the Web
Bill Crider's Homemade Home Page
Bill Crider's Pop Culture Magazine