Various tools for writers operated by the ReAnimus Press crew:

Staying Alive - A Writer
Anthopology 101: Reflections, Inspections and Dissections of SF Anthologies, by Bud Webster

General:

Specific to Smashwords:

How To Improve Your Speculative Fiction Openings, by Robert Qualkinbush
Space Travel - A Science Fiction Writer
More Issues at Hand, by James Blish (as William Atheling, Jr.)Of Worlds Beyond, by Lloyd Arthur Eshbach, ed.The Issue at Hand, by James Blish (as William Atheling, Jr.)In Search of Wonder, by Damon KnightHaving Relationships With Characters on the Road to Great Fiction, by Andrew BurtThe Craft of Writing Science Fiction that Sells, by Ben BovaThe Kinsman Saga, by Ben BovaTrilobyte, by Edward BryantThe Children of Hamelin, by Norman SpinradThe Weathermakers, by Ben BovaPast Masters, by Bud WebsterThe Planet Masters, by Allen L. Wold