Historical clue formulations

• Many an early Internet adopter — 2015-06-04
• Certain IM user — 2013-06-10
• Certain netizen — 2012-07-10
• Buddy List user — 2012-02-28
• Many an early computer user — 2011-10-07
• Many a surfer — 2007-05-18
• Many a surfer — 2006-01-13
• "You've got mail" hearer — 2005-10-12
• Instant message sender, perhaps — 2005-03-02
• Many a computer user — 2004-11-12
• One who hears "You've got mail" — 2004-08-23
• Instant message recipient, maybe — 2004-02-18
• Many an e-mailer — 2004-01-16
• Many an Internet user — 2003-10-18
• One who hears "You've got mail" — 2002-10-23
• Instant Messenger user — 2001-03-05