The way they worked Twitter into the new season was brilliant, and while I was checking out @oldwhitemansays and the other characters' accounts, I stumbled across the website created for the campus library - complete with rotating banner:
NBC has the official website, but they also created one for the fictitious Greendale Community College, complete with a page for the campus library - they even have a (fairly realistic) food and drink policy:
Please remember that the library is a communal place for all GCC students, faculty and staff. Please discard all trash when leaving a study area. And, due to frequent misuse, all window blinds must be left open or raised. Prepare accordingly.
While conversing with your fellow colleagues is natural, we ask you to please keep the noise level to a minimum in respect to others that are studying silently.
Food and drinks, with the exception of closed water bottles, are strictly forbidden in the library. However, they are allowed, within reason, within the study room walls only. Librarians will be walking around and monitoring the floors during working hours. If you are asked to discard of food or drink, please do so quickly and regretfully, as it is for the protection of our books and materials. No exceptions will be granted.
It's impressive they put the extra effort into creating this, but it also makes the show more fun. And yay for a relatively positive portrayal of a library in prime time.