While we are great fans of Open Data, it is just one part of a spectrum from data that needs to be kept secure (such as personal information) through data that is shared between partner organisations all the way to data that is made available to all to use and reuse.

This nice, short video from the ODI explains the concepts of Closed, Shared and Open data.

Open / Shared / Closed: The world of data from Open Data Institute on Vimeo.