The Tuesday Drop for February 15, 2011

Mapping the Protests: The Guardian's interactive map of the latest tweets on protests from around the Arab world and the Middle East.  

A New Direction: Arianna Huffington declares that under her leadership, AOL content will not have a leftist political bent. 

Pricing Social Media: Are the lofty valuations of companies like Twitter setting up investors for a bust? 

Front Page News: A gallery of major newspapers carrying the news that Hosni Mubarak had stepped down. 

Signing Off: Robert Gibbs gives his farewell message as White House Press Secretary.