Gail Tverberg posted this article at The Oil Drum in which she argues we may have passed peak, and the interconnectedness of energy and finance may well conspire to keep us from rebounding the way we might like, i.e. a resumption of BAU. There are numerous comments of course discussing whether she has right, wrong or somewhere in the middle. My view - Gail scares me. She is more of a doomer than I am, and she works with numbers and does more analysis than I do. I don't know how you put a bright, shiny spin on the way she collates that information. We are both big picture thinkers, but I have to say that her thoroughness leads me to worry.
On a different note, the Drum also posted this interview with David MacKay, an English physicist whose self published book, Sustainable Energy - Without Hot Air is making quite a splash. You can download it for free (PDF) if you are so inclined, either the whole thing or just pieces. The interview is worth reading.