>>1
Sure. I've picked out titles from /book/, /b/, Youtube, Amazon.com (naturally), T.E.D (the people who give talks have often written books on their topic), Wikipedia, LibraryThing.com. And, of course, friends and family-- which has nothing to do with your question, but relevant nevertheless.
Alot of the sci-fi authors I've found had written short stories for the magazine Crank, which is now out of commision.
I have no favorite website that gives me recommendations, as the new books that are added to my reading list stem all the way back to first initial books I ever read. My nose does most of my book finding; on deciding what to read next.