Nerval's Lobster writes: Get 'em young: That could be LinkedIn’s new motto, after the professional-networking Website opened itself up to universities and students. LinkedIn’s University Pages offer schools a place to post updates about campus news and activities; they can also link to famous alumni, who will doubtlessly love when a couple thousand students try to connect with them all at once. Some 200 universities are setting up LinkedIn Pages, including NYU, the University of Michigan, the University of Illinois, the Rochester Institute of Technology, and more. Why this aggressive expansion into a younger demographic? Today’s students are tomorrow’s cubicle bees and entrepreneurs; by locking them into the network early, LinkedIn can (at least in theory) maintain a user base for many years to come. (It’s safe to presume that at least a fraction of these young users will eventually engage LinkedIn’s paid services, which makes this initiative a long-term revenue play.) Building a substantial base among students could also help LinkedIn head off future competition, such as Facebook moving more aggressively into the careers space. Or it could just open a whole lot of concerns over privacy and security, similar to what Facebook already faces with its teen audience.