Mix text with images and embeds
MP3 or SoundCloud embed, MixCloud, etc.
MP4 or YouTube embed, Vimeo, Dailymotion, etc.
A collection of images
Embed 3rd party product
Everyone can submit new list items and vote up for the best submission
Everyone can vote up for the best list item
A list-based article
Hot or Not
A poll where each question has two opposite answers