ReAnimus Press - Breathing Life Into Great Books

Various tools for writers operated by the ReAnimus Press crew:

SF in Dimension, by Alexei and Cory Panshin

Heinlein

General:

Critique.org / Critters - The first writers workshop on the web. (Free.)
General Guidelines & Tips on Avoiding Scams
Fixing smart quotes in Word docs

Having Relationships With Characters on the Road to Great Fiction, by Andrew Burt

Staying Alive - A Writer

Of Worlds Beyond, by Lloyd Arthur Eshbach, ed.

Footprints on Sand, by L. Sprague de Camp and Catherine Crook de Camp

The Issue at Hand, by James Blish (as William Atheling, Jr.)

How To Improve Your Speculative Fiction Openings, by Robert Qualkinbush

More Issues at Hand, by James Blish (as William Atheling, Jr.)

Heinlein in Dimension, by Alexei Panshin

In Search of Wonder, by Damon Knight

The Science Fiction Novel, by Basil Davenport, Robert A. Heinlein, C. M. Kornbluth, Alfred Bester, and Robert Bloch

Galaxy Magazine: The Dark and the Light Years, by David L. Rosheim

Modern Science Fiction, by Reginald Bretnor, ed.

Anthopology 101: Reflections, Inspections and Dissections of SF Anthologies, by Bud Webster

The Craft of Writing Science Fiction that Sells, by Ben Bova