About nb

nb is an annotation taking tool developed by the Haystack Group at CSAIL. Students and Faculty can use nb to annotate arbitrary PDF files online, in a collaborative fashion.

A demo being worth a thousand words, you can try nb right now, using our Sandbox

nb has been used in real classes at MIT since February 2009, and has undergone two major development cycles. Hence, the current version is quite usable and stable. Still, active research and development are being carried out by the nb team. This means that, if you're a faculty, you can give nb a try by creating a sample site , and contact us if you have questions or if you'd like us to fix a bug you've found or add a feature that nb doesn't currently have.

The following video shows how nb can be used in a typical class environment.

A Guided Tour of NB (more tutorials)