The head of the European Central Bank makes good on his promise to save the euro. NBR's Susie Gharib speaks with ConvergEx's Chief Market Strategist Nicholas Colas on the implications of the ECB's comments today. The S&P 500 stock index jumps to pre-crisis levels but how are investors feeling today compared to 4 years ago? New York Correspondent Erika Miller takes a look. Amazon introduces a Kindle update and a new e-reader called "Paperwhite." Forrester Research's James McQuivey looks at how the new models stack up.