Will popular Stack Exchange sites get their own domain?
I have noticed that some of Stack Exchange's newer websites (i.e. any that were not part of the original trilogy, such as Ask Ubuntu and Stack Apps) have their own top-level URLs (e.g.
askubuntu.com) instead of
stackexchange.com URLs (e.g.
When does a site qualify for its own TLD? Is it automatic after a certain amount of time, or were Ask Ubuntu and Stack Apps exceptions?