Related Clues:

• Response to a joke on-line
• E-mail guffaw
• Cyberspace chuckle
• Chatroom chuckle
• Joke response
• Chat-room chuckle
• Online giggle
• ''I'm laughing audibly,'' in e-mail
• IMer's chuckle
• E-mail chuckle
• 'Ha-ha,' online
• Chuckle in a chat room
• Chat room chuckle
• Chatroom chortling
• Ha ha, online