Interaction through digital pen and paper

Stanford HCI research group, managed by prof. Scott Klemer, has explored this area through several lenses. First, they built ButterflyNet, an augmented notebook for field scientists. With ButterflyNet, a researcher collects field notes with the inking digital pen and paper notebook. These notes are
automatically correlated with other field data, such as digital
photographs. Second, they have explored a class of applications that we
call Interactive Gigapixel Prints (GIGAprints). With GIGAprints,
people can work with large printed surfaces such as maps and data
visualizations. Finally, they are building a Paper Applications toolkit to
enable designers and scientists alike to build paper-centric applications
tailored to their domain.