Mix text with images and embeds
MP3 or SoundCloud embed, MixCloud, etc.
MP4 or YouTube embed, Vimeo, Dailymotion, etc.
Facebook post, Twitter status, etc.
External site's link
Everyone can submit new list items and vote up for the best submission
What do you know about ...?
One or multiple questions about a subject or person
A poll where each question has two competing answers