• FRIEND - Friends are people you connect and share with on Facebook. You can send as well as receive friend requests from other Facebook members.
• GROUPS - Facebook Groups make it easy to connect with specific sets of people, such as co-workers. They’re dedicated spaces where you can share updates, photos, and documents as well as message other group members.
• MESSAGES - Messages are similar to private email messages. They appear in your Facebook Inbox and can include text messages, chats, emails, and mobile messages from your Facebook Friends.
• NEWS FEED - Your News Feed is a constantly updating list of stories in the middle of your homepage. It includes status updates, photos, videos, links, App activities, and likes from the people, Pages, and Groups you’re associated with.
• NOTIFICATIONS - Notifications are updates about activity on Facebook.
• PROFILE - Your Profile is your collection of photos, stories, and experiences that tell your story. It includes your Timeline, profile picture, biography, and personal information. It can be public or private, but is only for non-commercial use.
• TAGGING - A tag links a person, Page, or place to something you post, like a status update or photo.