Possible Clues:

• Person consuming nothing when back at a terminal?
• Where users meet
• About to receive short message by e-mail
• Does 'e get nothing? No, to the 19 down
• Nothing's shown up in unit connected to a computer
• Wired
• Person secures zero return using a computer
• Might trains run over the phone like this?
• Two-thirds of AOL
• World wide web locale