Twitter

Teaching with Twitter in the classroom can be done in many ways.  You can find resources, engage with your (PLN) Professional learning network.  Twitter in the classroom can help develop students thinking and monitor emerging trends.  
You can follow twitter accounts of educational leaders by using the research bar.  Allows you to engage with your educational colleagues.
I follow on twitter:
@newsmanone
@RandyPete
@thedailybeast
@fastic
@geoffconn