As a freelancer and someone who has a rapidly growing list of domains, I’m always keeping my eye out for web based collaboration and communication tools and was pretty intrigued when I came across Concentric Total Solutions (CTS) today. CTS offers GroupWare, which is a pretty nice collection of personal and collaboration tools that integrates with your email and hosting accounts. GroupWare offers shared calendars, contacts, notes, tasks and more.

A nice feature is that you can sync everything up nicely with Microsoft Outlook. They also offer a DNS hosting service which allows you to manage and configure all of your domains in one place on a secure DNS server. Go team CTS!