Groups and mystery sites
American Crime Writer's League
ClueLass Homepage An invaluable resource for the hard-core mystery fan. You can also find on this site a list of local independent mystery bookstores, listed by geographic are.
Internet Writers Journal Good coverage of mysteries and mystery writers.
Mystery Readers International MRI publishes a wonderful journal, Mystery Readers Journal, that focuses on some aspect of mystery (it changes with each issue). MRI also awards the Macavity Mystery Award.
Sisters in Crime Atlanta Chater - This site has a large collection of links useful to mystery and crime fiction writers.
Oline Cogdill -- Sun-Sentinel A finalist for the Nehr Mystery Critic's award, Oline Cogdill reviews mysteries for South Florida's Sun-Sentinel newspaper. Both reviews and audio interviews (including with me!) can be found at this site.
Other Writers
Laurien Berenson, author of the Melanie Travis mystery series.
Jan Grape, author of more than 20 short stories, including mystery, published in several anthologies.
Martha Lawrence, author of the mystery series featuring parapsychologist/private eye Dr. Elizabeth Chase.
Phil Mann, author of numerous humorous pieces.
Penny Warner, author of the Connor Westphal Mystery Series.
Book Shops
Grave Matters Online catalog of mystery and detective fiction.
Mysteries By Mail Thousands of mystery books, many at a discount. If you don't have a local mystery bookshop, this is the place!