We know it after the rise of Wikipedia most of the library users are turning to Wikipedia so less books are being read. But getting things online is a huge opportunity for most of the works.
Book rental is nothing new we know it all. But to make an opportunity for small players it can be a great idea to start online text-book rental. As we inter in a library the same way we can browse online book library and select the we want to rent. It is something similar movies rental. I have no report how much successful is online book rental business. But the Wikipedia article_ tells different story of online book rental business in India. But it is far better than traditional book rental, once you decided to rent books online the books will be delivered to home for free or with a minimum monthly charge. And book charges will be different. It is also better because you do not have to visit a library and search for books or buy a book and eat up the space in your home. Rent book and return them after reading. You can make payment by cash transfer or cash on delivery.
Most of the online book rental service are working locally or specific cities not in all the cities of India.