How are former GLBSE shares managed, ASICminer shares specifically?

[Grey]

It looks to me like ASICminer is going to be operational very soon, and it's looking like a worthwhile investment to pick up some shares in an auction. I read through the first few pages of the ASICminer thread, but they kept mentioning how it was managed through GLBSE, which 1.) I have no experience with, 2.) no longer exists.

So if GLBSE closed down, how are the shares kept track of, traded, etc? Is it just an informal thing, where if I were to buy some shares at auction, I'd just send an email to Bitfountain or whomever and they'd list me as a shareholder/delist the previous owner?  How are the dividends managed?

I'm sure this has been answered elsewhere, but I need more posts to get out of noobjail and I'm too lazy to dig through the 88 pages in the asicminer thread

[Monster Tent]

If they use one of the existing exchanges to transfer the shares too its a simple matter to import the list fwiw.

[Grey]

A quick look says that MPEx and ICBIT are two other big trading platforms. Are there any other big ones I could benefit from knowing about?