Related Clues:

• Stamp-saving service
• Correspondence created on keyboards
• Net notes
• Communication that may have an attachment
• Messages on a screen
• Fax alternative
• Postal alternative?
• Message from cyberspace
• Where ;-) means "Kidding!"
• Earthlink transmission
• Things on other things
• Stampless correspondence
• Spam, often
• Get hold of, in a way
• Message from a BlackBerry, maybe