Related Clues:

• Co. that offers I.M.'s
• Computer letters
• An Internet provider
• Certain IM provider
• Message from an AOLer
• Modern source of pass-along jokes
• Virus carrier, at times
• "You've got mail" co.
• AOL notes
• IM provider
• Some e-mail letters
• Chat room provider
• Netzero.com service
• Earthlink competitor, familiarly
• Letter on a screen