We just launched our Kickstarter campaign! Check out the pre alpha tech demo on our Kickstarter page and website.
A group for all fans of science fiction.
Free science fiction e-books:
Feedbooks.com (to download an e-book in a different file format than .epub, you need to click the title first, then choose the format)
Baen.com (a couple of free sci-fi books, there are also some fantasy ones there)