Some features:

- User Profile

Newsfeed
Friendship with Friend Suggestions
Cover Image
Private Message
Notification Center
Like/Dislike
Reports
Featured Members

- Groups

Newsfeed
Group Photo, Video and Discussion
Invitation System
Different group types: Private,Public or Restricted
Categories for Group
Featured Group

- Video Sharing

Share video from Vimeo or Youtube
Tags
Related Video
Categories for Video
Comments & Likes
Privacy Options

- Photo & Album

Photo Tagging
Categories for Albums
Comments & Likes
Tags
Privacy Options

- Events

RSVP Tracking
Event Map
Newsfeed
Invitation System
Categories for Events

- Blog

Tags
Categories for Blogs
Comments & Likes
Upload Image

- Discussions

Tags
Related Video
Categories for Video
Comments & Likes
Pin/Lock Topic
Upload Attachment