Email Essentials, starting at $3.99 per user per month for 5 GB of email storage and 2 GB SkyDrive Pro storage
Business Essentials, starting at $8.99 per user per month for 50 GB of email storage, 25 GB of SkyDrive Pro storage
Productivity Plus, starting at $12.49 per user per month for 50 GB of email storage, 25 GB of SkyDrive Pro; Office Mobile Apps for iPhone, Android and Windows Phone; and the latest versions of Microsoft's Office desktop apps for up to five PCs and/or Macs
In October 2013, Microsoft struck a deal with GoDaddy that allowed users to purchase custom GoDaddy domain names directly from within Office 365. Microsoft also allowed existing GoDaddy users to update Office 365 to start using that domain name directly from within Office 365.
The GoDaddy deal isn't the first such Office 365 partnership aimed at small-business users. In 2012, Verizon Wireless announced it was adding Office 365 to its Small Business Essentials suite of tools for small businesses. And Microsoft signed up Sprint to offer Office 365 the same way to its small- and mid-size business users.