Related Clues:

• Swift brute
• RSVP
• Sunnyvale-based Internet giant
• Fax, maybe
• Clip on
• ''Gulliver's Travels'' brute
• Popular dot-com site
• Gmail button
• Say something back
• Heed an RSVP
• Email program button
• Dot-com industry giant
• Cyberspace giant
• Brand name yodeled in ads
• Dot-com giant