30 years ago this month, Professor Scott Fahlman of Carnegie Mellon University sent an email with the first ever sideways smiley face: "I propose the following character sequence for joke markers: :-) Read it sideways."
Writes Salon's Mary Elizabeth Williams, "Smart people, nay, brilliant ones use emoticons. Articulate, bright, funny people. Yet when I see a smiley, my first thought is, 'What are you, 12 years old?'" :-<