35
On-line retail store services in the field of digital books, textbooks, and educational materials
38
Delivery of digital books, textbooks, and educational materials of others via the Internet
42
Application service provider featuring electronic book reader software for purchasing digital books, textbooks, and educational materials, reading, annotating, and searching digital books, textbooks, and educational materials, sharing with others book annotations, content, and notes, and sorting, organizing, and searching stored digital books, textbooks, and educational materials; creating and providing an online community for registered users in the nature of learners, students, teachers and other readers to post and exchange comments, reviews, ratings, and recommendations on textbooks and educational materials and to share book annotations, notes, and study information with other users and engage in social networking
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