20141027_atc_whats_more_embarrasing_than_that_old_screen_name_sharing_it.mp3?orgId=1&topicId=1019&aggIds=352990765&d=108&p=2&story=359344785&t=progseg&e=359342450&seg=5&ft=nprml&f=359344785

This story is part of the New Boom series on millennials in America.

Before Google Chat, before Facebook Messenger, there was AOL Instant Messenger. AIM still exists today, but it was hugely popular in the late 1990s. And for many young adults who grew up using AIM, those old screen names are a blast from the past they'd just as well forget.

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