anand84 - 1:14 pm on Jun 3, 2013 (gmt 0)
So as I understand it, your search traffic for blue-widgets.html crashed. So, you created a new blue_widgets.html with the same content without a 301 redirect.
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?
Also, has the traffic from other sources (bing, facebook,etc.) stayed linear through this time? Or has traffic from other sources dropped too?