Sure do, two groups in fact. I regularly meet up with old high school friends once or twice every week, and the college friends who moved away every month or so. Save for me, nobody in either group knows the other, just as well because I don't think they'd mix. My old high school friends have a highly competitive mindset while my college friends just don't give any fucks, most of the time.
I also used to be in a small time online multiple gaming guild with the former group and a few guys who I've never met outside the Internet. Eventually though one of the admins went rogue and deleted the site. After this, some of us moved on to other clans, others I simply never saw again, and my friends got into the big time guild TEC, which I'm pretty sure have now become ShadowLogic/The Shadowloo, who I think now mainly specialize in organizing pro gaming venues situated in Australia. Someone correct me if you know more than me on this. All IRL friends left that group long before then though, save for one who still associates himself with them.
Want to know the best bit? The guy who deleted the site was my best friend. We all gave him major grief for it back in the day but it's all water under the bridge now. He made a guild himself using remnants from the old one including myself as a starting point. Half a year later though he lost interest and the place slowly died. Afterwards, He joined TEC like the others with him and left several years later. As for me I left that stuff behind, never really cared for the whole guild/clan thing much anyway to be honest, I'm a solo player at heart.