Students have another choice when it comes to electronic textbooks. CourseSmart has released an iPad App [iTunes link], and the company says that 90 percent of the “core textbooks” out there are available.

CourseSmart already sells e-textbooks for view on a laptop or the iPhone, but I think you’ll agree that reading a textbook on an iPad is another experience entirely. The large, color screen could come in handy for, off the top of my head, biology books, or maybe if you’re buying a photography book for an introductory class.

Students can add notes to books, as seen in the picture here.

You’ll recall that Barnes & Noble started an education service of its own called NOOKstudy, working with BlackBoard, the software that’s pretty ubiquitous on college campuses.

The App is free.