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

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

General:

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

In Search of Wonder, by Damon Knight

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

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

Staying Alive - A Writer

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

How To Improve Your Speculative Fiction Openings, by Robert Qualkinbush

Heinlein

Of Worlds Beyond, by Lloyd Arthur Eshbach, ed.

Modern Science Fiction, by Reginald Bretnor, ed.

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

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

Space Travel - A Science Fiction Writer

Heinlein in Dimension, by Alexei Panshin

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