Forum
Offers a threaded discussion forum.
Polls
Provides the ability to use polls to capture votes on various topics via multiple choice questions.
Taxonomy
Allows the categorization of content.
News Feed
Offers syndicated content (RSS, RDF, and Atom feeds).
Comment and Tracker
Allow users to comment on your published content and track recent posts.
Book
Allows users to structure site pages in a hierarchy.
Search
Provides site-wide keyword searching.
Upload
Allows users to upload and attach files to content.
Statistics
Offers site statistics reporting.
Content Translation
Allows content to be translated into a different language (This feature is an imperfect translation the Google Translate feature is a better and more easily implemented solution).
Throttle
Offers an auto-throttling mechanism to control site congestion.
Pages
Add or edit text, images, or other media content.
Blog
Provides complete blog (articles with member comments capability) functionality.
Contact Form
Use personal or site-wide contact forms.
Templates
Change the look and feel of your site with design templates.
Modules
Install third-party programs or functionalities.
Multiple-site support
Provides management of multiple sites.
Multiple-user
User content creation and editing with multi-level permissions.
Multiple-level menu system
Integrate main menus and sub-menus.
Ping
Alert other sites when your site has been updated.
Profile
Management of user profiles.
OpenID
Allows users to log into the site using OpenID.
Trigger
Provides the ability for actions to be generated on certain system events, e.g. when new content is created.