One of the social platforms presented is Drupal Commons. Commons as a platform for building community sites based on Drupal that enables users to:
- Sign up as community members
- Create a profiles
- Form and join groups, with the group administrator deciding how controlled or uncontrolled the new membership process is plus whether a group and its content is public or private
- Assign more than one administrator for a group
- Discuss in group forums
- Work together in wikis
- Create and post to group blogs
- Schedule meetups
- Track what's happening through personalized dashboards
- Link community members to your company's CRM, LDAP, and marketing automation systems
- Built-in site analytics with graphs for new users, new groups, new posts, and other metrics over various time periods
Source: CMS Wire "7+ Social Software Platforms for Enterprise Collaboration"