Planet13 - 3:03 pm on Jun 3, 2013 (gmt 0)
"Does this mean, you now have two pages with the same content? Or is the first one deleted from your system? If not, have you canonicalized the first one?"
Only one page. I deleted the original blue-widgets.html page when I created the blue_widgets.html page.
"Also, has the traffic from other sources (bing, facebook,etc.) stayed linear through this time? Or has traffic from other sources dropped too?"
Traffic from bing and yahoo have increased, but they are still so small as to be insignificant.