A good summary and analysis of events related to the Greek Sovereign Debt Crisis
http://www.economist.com/news/briefing/21656699-nation-decides-its-fate-again-there-comes-up-day
UPDATES:
John Cassidy on the Greek Vote:
Washington Post on the Greek Crisis
http://www.washingtonpost.com/blogs/wonkblog/wp/2015/07/05/as-greece-votes-heres-everything-you-need-to-know-about-the-nations-crisis
http://www.washingtonpost.com/blogs/wonkblog/wp/2015/07/05/as-greece-votes-heres-everything-you-need-to-know-about-the-nations-crisis