The Virtual Notebook System (VNS) was developed at the Baylor School of Medicine and is now a product of The ForeFront Group. The VNS system allows you to store text and image "objects" on "pages" that are arranged into virtual "notebooks". These notebooks can be shared with other people across platforms - changes are updated on every computer viewing the page. Data is stored on a Unix server, and clients to view the data are available for PC, Mac, and Unix systems.