Back in the 1990s, most U.S. consumers used AOL as their front door to the Internet with AIM as the main tool to send instant messages to their "buddy list." Even though we're far removed from the dial-up days, AIM has managed to last all these years for those loyal AOL customers. However, AIM's days are now numbered. Effective December 15, that iconic yellow running man logo will officially buy the farm as AOL retires its signature instant messaging service. "We are more excited than ever to...