Free Sci Fi book from DiscoverSciFi.com
So signing up will get you at least 1 free book (possibly more) plus a newsletter (or for the more jaded slickdealer--spam).
Here is a blurb about the site:
Quote :The DiscoverSciFi mailing list offers subscribers a chance to learn about new and upcoming releases and discounts by some of the biggest-selling names in science fiction today…and to get a free bestselling book just for signing up.
Matthew Mather, Nick Webb, Samuel Peralta, Nicholas Sansbury Smith, Michael Grumley, Evan Currie, Autumn Kalquist, Jay Allan, Darren Wearmouth, and Joshua Dalzelle