I read a lot of business books and magazines. For starters, i read Economist businessweek, WSJ, New York Times, The Edge regularly. This allows u to get a business sense and macro-economic sense. I also subscribe to HBR and read it monthly or so.
In terms of books, I used to read a lot of business and finance books. Not the academic text type like Corporate Finance but rather books like Blink, Snowball by Warren Buffet, or specific functional advice books by real experts in their fields. Stuff like First Break All the Rules on management. (Gallup survey).
Now I read less business books as much is common sense. The other group i learn from is what you are doing... i speak with experienced entrepreneurs in other fields to learn from them.
