Free eBooks

I will add to this list as I find new sources and find the time to do it.

My personal favorite is Baen Free Library

They have a wealth for great Science Fiction and Fantasy from well known, popular authors such as Elizabeth Moon and David Weber.  These books are all DRM free and in many formats.

SpecFicWorld has magazines and eBooks available in the pdf format. 

Project Gutenberg has a Science Fiction Bookshelf with loads of old scifi for free downloading.  All  their downloads are  free of charge and free of DRM.

SciFiMatter.com I have not downloaded anything here but it comes up in search engines. 

InkMesh, I have not downloaded anything here but it comes up in search engines.

ManyBooks.net, I have downloaded from here and it went seamlessly.

Fictionwise, I have downloaded and it worked ok. It is a division of Barnes&Noble.

MobileReads, I have signed up but haven't downloaded anything yet.

Smashwords, appears to have a fair number of DRM free books.  Also seems to have a wealth of cheesy, sleazy stories.