Storify allows you to pull in websites, videos, tweets, facebook posts, and more and then add text to shape the collection. A way to curate and present the forest of available information.
Pros: Easy to pull in elements and add your own text. Clean layout. You can imbed the story into your blog or website (like this!)
Cons: Search functions for various social media tools aren't as flexible as they could be.
Use it: to present information on current events, to pull together a lot of information in one place. Woudl work well to bring together a bunch of articles or topics if you're asking students to choose one.