In a previous post I mentioned FIRE, the Foundation for Individual Rights in Education. Neither left- nor right-leaning, FIRE most often challenges university speech codes and similar violations of the 1st Amendment. Think of FIRE as what the ACLU would be if it weren't so unabashedly liberal.
They obviously have their work cut out for them. Is there any other organization out there that does what FIRE does? If you know of any, please tell me about them in a comment.
Then read this book review about how often, and how blatantly, our universities and colleges ignore the 1st Amendment.