The document discusses research on augmenting paper with audio and other digital media. It describes past work augmenting photographs with audio ("audiophotography") and prototypes developed in the 1990s-2000s. More recent work involved augmenting newspaper articles with audio annotations and interactive elements. The researcher's vision is to develop "webpaper" that connects paper to supplemental digital web content through touch-sensitive paper interfaces. Current and future work aims to support both optical and electronic paper technologies in a common framework and apply this to travel guidebooks. The role of audio is to add narrative, context and interactivity to printed materials.