Various tools for writers operated by the ReAnimus Press crew:

Space Travel - A Science Fiction Writer
Modern Science Fiction, by Reginald Bretnor, ed.

General:

In Search of Wonder, by Damon Knight
How To Improve Your Speculative Fiction Openings, by Robert Qualkinbush
Anthopology 101: Reflections, Inspections and Dissections of SF Anthologies, by Bud WebsterOf Worlds Beyond, by Lloyd Arthur Eshbach, ed.Heinlein in Dimension, by Alexei PanshinHeinleinStaying Alive - A WriterHaving Relationships With Characters on the Road to Great Fiction, by Andrew BurtGalaxy Magazine: The Dark and the Light Years, by David L. RosheimThe Craft of Writing Science Fiction that Sells, by Ben BovaSF in Dimension, by Alexei and Cory PanshinMore Issues at Hand, by James Blish (as William Atheling, Jr.)Footprints on Sand, by L. Sprague de Camp and Catherine Crook de CampThe Issue at Hand, by James Blish (as William Atheling, Jr.)