I recently took a look around my department to see what academic scientists are reading. I ignored the stacks of research papers, because I know that no-one ever gets around to reading them. It seems that the most common reading materials for academic scientists are comics (at least for the grad students).
Two of the most common information sources are XKCD (for technical information) and "Piled Higher and Deeper" (for reporting on academic culture). PhD comics are really made for the grad student. If you don't understand the name, think of the common meaning of "BS". Then think of how you might interpret "BS, MS, PhD". If you still don't get it, then you'll just have to check out the 200 most popular PhD comics.
What are scientists reading?