A quick heads up: Jeff Young has an informative piece in The Chronicle of Higher Education on what happened when one university delivered all textbooks to students electronically. It’s definitely worth a read. Meanwhile, on a related note, Walt Mossberg, the Wall Street Journal’s tech guru, doesn’t like the new Kindle DX very much. Amazon designed the supersized e‑book reader (see it here) to bring portability to textbooks, newspapers and other periodicals. If you get one, let us know your thoughts, whether pro or con.