Related Clues:

• Where you might find ':-)'
• Copy of an address
• Type of communication that's always ''monitored''?
• Gone up
• IOU, e.g.
• Middle C, e.g.
• Cybercorrespondence
• What's read
• Phone call supplanter
• Headache for Dilbert
• Paperless communication
• Letters on screens
• Cell phone message
• '___ to self . . .'
• Some messages