This Saturday, Dec. 1, 2012 file photo shows Tunisian protesters clashing with riot police, in Siliana, Tunisia. Two years after the revolution that overthrew a dictator and started the Arab Spring, Tunisia is struggling with high unemployment and rising violence in its politics.
Social media pioneer Andy Carvin drew high praise from fellow journalists for his coverage of the revolutions in Tunisia, Egypt, Libya and Syria. The NPR reporter and strategist tracked the Arab Spring events in real time, from thousands of miles away in Washington.
University of Central Missouri President Chuck Ambrose wants to hear from his students on Twitter.
Ambrose is hosting a two-hour "Tweet Chat" with students at the Warrensburg school starting at noon Tuesday.
The school says anyone interested in the university is also welcome to participate. More than 1,600 people follow Ambrose on Twitter, where he is known as @UCMAmbrose. Tuesday's event will be his first live chat using the format.