REALLY fun activity to get students involved in professional correspondence.
This PowerPoint goes over e-mails.
How to send an e-mail, the importance of using the subject line, the significance of cc and the sneaky bcc, and it gives students the opportunity to "send" an e-mail to a potential employer and get a "response." <--No computer necessay.
I have taught this lesson to freshmen as well as seniors, and it's always hit.