User Education
Gmail showing authentication info
Yesterday Gmail announced on their blog they would be pushing out some new UI to users to show the authentication and encryption status of email. They are trying to make email safer.
There are a number of blog posts on WttW for background and more information.
User education doesn't work
A growing OSX security problem illustrates why user education is not the solution to virus, spam or malware problems.
HT: @briankrebs