Springwise: Focusing initially on education, business and the social sciences, UK-based Reference Tree aims to give higher-education students a way to purchase just the portions of the textbooks they need to efficiently complete their coursework. Publishers including Elsevier, Taylor + Francis, Sage, Hodder Education, McGraw Hill and Cambridge University Press have already signed on with the service, which adds features such as the ability to highlight and annotate text and — coming soon — the ability to collaborate with peers through shared notes and comments. Chapter pricing begins as low as GBP 1.50.
For students, electronic textbooks by the chapter [Springwise]