ICQ Messenger Is Growing for the First Time in Years

The headquarters of Mail.ru Group Ltd. in Moscow on Nov. 26, 2010. Photographer: Alexander Zemlianichenko Jr./Bloomberg

If you’re old enough (and sufficiently geeky) you probably remember ICQ. The Israeli-developed instant messenger, with the green flower logo and goofy "uh oh” notification sound, had 100 million users at its peak.

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