AcademicPub Mentioned in Inside Higher Ed

 From an article about the rise of custom alternatives to traditional coursebooks:

AcademicPub, lets professors build "textbooks" by pulling content from the Web, clearing copyright in real time when necessary; from its own library, which includes pre-cleared content from a number of academic publishers; and from the professors' own files. As the professor builds the book, AcademicPub keeps a running tally of how much it will cost for students. If a professor thinks the price of the book is getting too high, she can ax certain parts or substitute in content from open sources.

 You can read the whole article here.