I don't listen while I ride, but I do listen to audiobooks while driving long distances or while I'm cleaning or knitting. Currently I'm listening to No Idle Hands: A Social History of American Needlework that is very fascinating. I'm up to the discussion of the relief societies during the American Civil War.

I also recommend James Herriot's books, also Dave Barry has lots of collections of his columns on audiobook. I tend to prefer non-fiction for listening, though. I prefer to read my fiction. I don't know why.