Bergen is a senior fellow at the New America Foundation in Washington D.C. where he co-directs the Counterterrorism Strategy Initiative; a research fellow at New York University's Center on Law and Security and CNN's national security analyst. He is also the editor of Foreign Policy’s AfPak Channel.
Check out his Ultimate AfPak Reading List. The list also is available for download in Word document here. I have appended a second list to the downloadable material -- George Packer's AfPak list that came along with his piece on Richard Holbrooke in the New Yorker.
Download: Ultimate AfPak Reading List (Word docx format).