The inclusion of video in an instant messaging (IM) system, turning it into a video call. For example, in 2003, Apple introduced its iSight video camera for use with its iChat instant messaging. See ...
These days, we take internet-based chatting for granted. We're spoiled by a massive (and admittedly fragmented) ecosystem of direct messaging (DM) services on our phones and PCs, ranging from WhatsApp ...