By Nick Mahon on

Is there any way to have all node teasers be displayed on the site (e.g. the main page) but give the "no access" message when the node is visited? I ask this because I am working on a paid-content site and would like users to see what content is available but not see the whole story unless they have the required privileges.

How would I go about writing a module for this? Or does one already exist?