Interest in open educational resources — freely accessible and openly licensed learning materials — is booming.

Interest in open educational resources — freely accessible and openly licensed learning materials — is booming. But while OER’s growing popularity with faculty members has delighted supporters, it has also attracted the attention of commercial publishers. Macmillan LearningCengagePearson and McGraw-Hillhave all recently introduced products that incorporate open educational resources into platforms that also include proprietary material.