Stub Zones Information
http://techgenix.com/dns_stub_zones
http://www.cloudyfuture.net/2015/08/24/why-dont-people-use-stub-zones

Why use third-party DNS Servers
http://www.makeuseof.com/tag/reasons-third-party-dns-servers-secure

DNS Made Easy
http://www.dnsmadeeasy.com

Open DNS
https://www.opendns.com

DNS Record Types
https://blog.dnsimple.com/2015/04/common-dns-records