As far as I know HP is a Global Website with a dedicated 16 team members at hubpages.com/about/team . It covers part of 2nd part of your question. While registering the domain name there are three parts in it. For example www.hubpages.com is the full URL consisting of :
www - the sub domain name - in your case it is theexaminer-1
hubpages - this is the real domain name registered.
.com - this is Top Level Domain. Top Level Domains TLD's are also of two types gTLDS's (Generic) like .com, .net, .tv and ccTLD (Country Code) like .in for India, .uk of UK.
Every member at HP is provided subdomain like theexaminer-1.hubpages.com