According to a January 6th, 2010 article in the Daily Princetonian, "U. offers faster, more reliable wireless service," Princeton University's Office of Information Technology recently improved the wireless network by "...[blocking] IPv6 packets at each wireless access point on campus."
So what is IPv6?
A keyword search for "IPv6" in the Library Catalog will actually lead to some quick answers that don't require heading in to the library.
In particular, there are two e-books linked from the catalog that offer a history and brief explanation of IPv6.
Looking for more indepth and technical information on IPv6 implementation or transition?