eNom are a domain registrar and we use them for our domain registrations.
"A registrar is a business that has the ability to register domain names on the behalf of anyone interested in obtaining a domain name. Registrars must accredited by Internet Corporation for Assigned Names and Numbers(ICANN) and may only be allowed to register certain top level domain names. The registrar must maintain domain name record information about each domain name and manage registration, expiration, re-registration, and NIC fee collection processes."
Basically changing the tag to enom means that enom can now handle your domain therefore you would be using there registrar services. With us we simply handle the enom management for you if required.
Hope this helps
