Storify lets you create social stories by mixing your social media streams. Now, you can use your fingers to mix media from Twitter, Facebook, Instagram and YouTube to tell your story from the iPad. Free.

Create social stories. Storify helps its users tell stories by curating social media.

Pinterest is an online pinboard. Organize and share things you love. Invitation only at present (19 Jan 2012) but (allegedly) HOT!

Killer library & learning news!

Google+ to Facebook, Google+ to Twitter, Google+ auto share

Smokescreen is a cutting-edge game about life online, on a new social network called White Smoke. Explore websites, search for clues, receive phone calls, chat on IM, and tackle puzzles and minigames. On Smokescreen, who can you trust?

Facebook is the world's leading social network, with over 300 million users and more than 900 employees. But how do you get the most out of it? To answer this question and more, Mashable has created The Facebook Guide Book, a complete collection of resources to help you master Facebook.

A free PDF download that offers some very solid advice. If you're just beginning to explore the uses of social media in your classroom, this guide is well worth downloading.

Twitter is a social network used by millions of people, and thousands more are signing up every day to send short messages to groups of friends. Tips info hints.

For your eyes only.. Spymaster is a new Twitter-based social game that is currently in private beta with a small group of élite players. Oh dear...

The source for health videos. icyou is a user-generated video community that empowers you to make informed decisions about your health.

Helping people make media that matters. Investigate, showcase and set standards for socially engaged media-making. Organize conferences and convenings, publish research, create codes of best practices, and incubate media strategies.