An interactive timeline to order the developments.
http://america.aljazeera.com/article...velations.htmlTimeline of Edward Snowden's revelations
Al Jazeera's in-depth look back at two months of leaks by the ex-NSA contractor who fled from Hawaii to Hong Kong to Russia after releasing loads of documents on surveillance in the U.S. and around the world. The information below is compiled from the news outlets that first reported the data.
A very accessible reference.