Story
Mix text with images and embeds
Video
MP4 or YouTube embed, Vimeo, Dailymotion, etc.
Gallery
A collection of images
Link
External site's link
Open list
Everyone can submit new list items and vote up for the best submission
Ranked list
Everyone can vote up for the best list item
Classic list
A list-based article
Trivia quiz
What do you know about ...?
Poll
One or multiple questions about a subject or person