I thought all SE sites had to hosted at
stackexchange.com. So what exactly is OnStartups Answers? Is it part of the Stack Exchange community, and will accounts be associated, or is it separate?
Why is this site different?
Answers.onstartups.com is 100% a Stack Exchange Network site.
You can always tell a Stack Exchange site from it 100% Gen-u-wine™ logo and menu in the upper, left-hand corner:
The URL redirects from the onstartups.com domain to provide a seamless experience for the existing users, but it is operating on our servers. It is a fully-fledged product of Stack Exchange just like any other SE site.
Wherever possible, we are working with the Stack Exchange 1.0 sites that have created successful communities. Generally, it is better to bring them into the Stack Exchange Network rather than shutting them down or creating competing sites. The more people we get together in one place, the better the site will be.