Has Twitter killed instant messaging? That’s one possible explanation for the sudden and precipitous drop in instant message traffic in the past few years. A recent study shows that Britons spent an entire 14 percent of the online-time instant messaging back in 2007. Now? That number is a paltry 5 percent. Is IM dead, dying, or merely going through growing pains?
I haven't used IM in 5 years.