There are some features quite interesting, in special all the improvements planned for the 5.3 release (about december/january). Here is a summary of some of them:

- Content Management:

• Sharing structures between communities.
• Related contents
• Tagcloud
• Improvements in the management of taxonomies
• Moderation / censorship of content

- Custom Attributes

• Incorporate custom fields to most portlets

- Knowledge base

• Functional module for knowledge management.

- Integrated Workflow

- Audit and usage statistics

- Scalability