No-IP - Dynamic DNS and Managed DNS Provider
CloudFlare - Cloudflare is a global network designed to make everything you connect to the Internet secure, private, fast, and reliable.
Duck DNS - Free dynamic DNS hosted on Amazon VPC
Paessler PRTG - An advanced network monitoring solution to monitor network up/downtime, traffic and usage.
FreeDNS by Afraid.org - Free DNS hosting, lets you fully manage your own domain. Dynamic DNS and Static DNS services available. You may also create hosts off other domains that we host upon the domain owners consent, we have several domains to choose from!
MRTG - MRTG (or Multi Router Traffic Grapher) is an open-source network monitoring tool.