Microsoft has released today the Release Candidate of Small Business Essential 2011.
Ideal as a first server for small businesses with up to 25 users, Windows Small Business Server 2011 Essentials provides a cost-effective and easy-to-use solution to help protect data, organize and access business information from virtually anywhere, support the applications needed to run a business, and quickly connect to online services for e-mail, collaboration and CRM.
To get more details you can go here http://www.youtube.com/user/SmallBusinessServer; this a You Tube channel to deliver some video focusing on core features and functionality.