15 Essential Time-saving Tools for Busy Writers by Bryan Collins lists 15 writing tools that will save you time and help you become a more productive writer.
Scrivener: The Ultimate Multitool for Writers
Scrivener: The Ultimate Multitool for Writers by Austin Briggs including screenshots of some of the capabilities of this unusual software for writers
OmmWriter Dana: My Second-Favorite Writing Program of All Time
OmmWriter Dana: My Second-Favorite Writing Program of All Time for its simplicity, ease and beautiful display of typography in its essence on the screen
Writer For iPad by Oliver Reichenstein & Information Architects
Writer For iPad by Oliver Reichenstein & Information Architects, an entirely new idea in word processing in which all other functions are stripped away.