I first met Ada at the Boston 2600 meetup in Harvard Sq in 1992. I think she was 14. Deth Veggie from Cult of the Dead Cow introduced her to me. He said he could tell she was going to amount to something big. Heh. Congrats Ada!
You've got me beat by 3 years. I think I met her for the first time at Pumpcon. She's also one of the nicest people. I tell my daughter about her all the time (it's no use, she still wants to be an author instead of an engineer).
I first met her IRL at a Boston 2600 meeting too, at the Cambridgeside Galleria. IIRC she was being escorted around by Rogue Agent and Sarah Gordon.
Already knew her on irc +hack/#hack back from when she was 'lem0n', which Deth Veggie still calls her (he still calls me by one of my old handles too).
(I used a bunch of handles back then, on irc mostly gfm or geo)