SharePoint 2013 Communities

The following are the new Communities (Collaboration) features in SharePoint 2013.

Feature	Description
Microblog	Allows users to post short messages and publish them instantly to all users in the network. The posts will be displayed as feeds to other users. Other user can post replies to the micro blogs instantly. The Distributed Cache service enables sharing the blogs posts and feeds instantly by caching them.
Mobility	Allows integrating SharePoint Applications and Services with Windows Phone applications. Offers new, optimized viewing experiences across different mobile platforms. Compatible with mobile browsers like Internet Explorer Mobile, Safari, Android Browser etc.
Community Sites Template	Users can start and participate in forum threads in the Community Sites, this helps users to share information and get suggestions from other users.
Community Portal Template	New Template, offers a search option to view the list of Community sites across sites and site collections. Allows the user to find a community site and join the community.

Related Post
SharePoint 2013 Hardware and Software Requirements
SharePoint 2013 Authentication
SharePoint 2013 Sites
SharePoint 2013 Communities
SharePoint 2013 Content
SharePoint 2013 Search
SharePoint 2013 Insight
SharePoint 2013 Composites
SharePoint 2013 Claim Based Authentication
SharePoint 2013 Support for OAuth 2.0
SharePoint 2013 Distributed Cache Service