Related Clues:

• 90's-style letters
• High-powered language?
• Start of a Web site address
• Messages that can arrive at any time
• Desktop communication
• Quick notes?
• Letters in cyberspace
• It opens with a click
• See 22-Down
• Modern letters
• Internet letters
• Net result?
• Cybernotes
• Correspondence
• Spam, e.g.