Random House has made available a bunch of Science Fiction e-books for free today in .pdf format. Head on over to Suvudu.com and check them out. Here’s the list of books available:
• His Majesty’s Dragon by Naomi Novik
• Assassin’s Apprentice by Robin Hobb
• Settling Accounts: Return Engagement by Harry Turtledove
• Red Mars by Kim Stanley Robinson
• Blood Engines by T.A. Pratt
In addition to that, tor.com has published a story by Rachel Swirsky. You can read that here.