You can create student accounts for an entire class with just a few clicks (and student email addresses are optional for account creation) Students of the same class are automatically set up as a Diigo group so they can start using all the benefits that a Diigo group provides, such as group bookmarks and annotations, and group forums. Privacy settings of student accounts are pre-set so that only teachers and classmates can communicate with them. Ads presented to student account users are limited to education-related sponsors.