So I recall reading Corporate Enclaves and reading up on LA's history. The reason LA became a free city was because a hacker group called Magestone hacked the gubernatorial election.
I remember reading that name, and thinking it was a very strange name for a hacker group. Sounds more like a magical society to me and I don't ever recall reading it in any other SR book. Though, to be fair, there are a LOT of books that I haven't read.
Anyway, I just came across the Magic Usenet Groups on p 23 of Street Grimoire and look at that... Magestone. Possibly a group of Oxford mage hackers? That I guess in 2040-something hacked the CalFree gubernatorial election, or just maybe a coincidence? Has Magestone ever been mentioned anywhere else?