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