I've met 3 CMs in person from other groups. I met one awhile back when CM had groups for tons of elementary schools across the US- we live in the same neighborhood and had never met, but it turned out that I graduated with her DH and she graduated with my brother. LOL
The other two I had no connection to apart from CM- I met one when she came to vacation in a town near me and another from SC when I was vacationing in Myrtle Beach.
Oh, and there's one that I haven't met in person from the PA. moms group, but my profile picture on here is the same as on FB and she recognized it. We live in the same town and had over 20 FB friends (mostly people I graduated with) in common! LOL
I've met three.
The first turned out to be an absolute nutjob, and the ONLY bad experience I've had meeting people from online (and I've met A LOT of people from online, including hubs). She didn't live far from where I did (in Georgia), but thankfully, We moved to NM before I had any serious issues with her - the issues which caused me to kick her to the curb.
The second was great - she Homeschools like I do and lives here in my town; our families all went trick-or-treating together the night we met. Unfortunately, we fizzled as friends..we were both too busy, yet she didn't understand why I couldn't just drop everything and come over when she asked last minute and must have thought We were blowing them off (NOT the case, as We all liked her and her family). We ended on a very good note, though.
The third and I are still friends, but live two hours away from one another. We met the day of her youngest's second birthday party (which she invited my Family to) and we both Homeschool. Although we haven't seen each other since, we still talk occasionally and I plan to go to her housewarming party (they just bought a new house). She is lovely, and I finally found someone who talks more than I do! lol.