My weekly group has been together for nearly 20 years. One was a friend from high-school, one was his friend, and the other two were brought in on a game by a mutual friend that no longer plays. They've all been in the "friend" category for so long that it's odd to think of them as people I met through gaming (hell, one of them's my brother-in-law now). Another bi-weekly group I'm in is composed of en-worlders met online and my girlfriend, and yet another group (that's only played once so far, so maybe not a real group) was with people I met online elsewhere.
~Qualidar~