I'll confess, I'm an oddball
Current book:
Geological Evolution of the Colorado Plateau
Current Ebook
Honest, the Martian ate your dog.
Watching the DVD of the 1986 Mets.
I like to know what's overhead and underfoot, hence Geology and Astronomy. Took a couple of semesters of each in college.
If you want free classics - check out Project Gutenberg. Manybooks also has these, plus a few Creative Commons.
A lot of new authors will publish via Creative Commons to see how a book will go, then hope you will buy the sequel.
Obooko also has some - but you had better know how to convert to either pdf or epub.
I like Sci - Fi and must have collected over 300 books by now. I have them stashed on a computer and just transfer by using a card reader.