The future us here. We will experience more furniture design that merges with technology as we work and play our way into the next 5 years.
Your library might not have this elegant furniture but it will employ some combination of of furniture that seats groups of people who will work together using a variety of techno-devices.
Here's an elegant solution from Steelcase. I like the high stool seating at the 'back' of the benches - good chance that it will allow even more people to participate or observe. Mediascape from Steelcase