Oh, I didn't know amazon had bought them out. The whole project was first developed by a local second hand bookstore here on Vancouver island.

I didn't, either. From what I can tell, they have a fairly light touch with their acquired companies (Zappos, Goodreads, IMDb). At least at first.

It varies, the one called bookpages.co.uk became amazon.co.uk almost immediately, mobipocket sort of disappeared into Kindle services, bookdepository (a later UK purchase) continues to operate in its own fashion, shipping books for free in padded envelopes one at a time.