engine - 5:25 pm on Apr 12, 2011 (gmt 0)
The average google user won't have a clue about Panda. They either find what they want, they give up, or they look elsewhere.
bing raising its profile with ads is a very expensive route, so some of the influence comes from its deal with yahoo, without doubt.
I'm certain that many more average surfers are becoming more aware of bing. The wife uses it now, and I never asked her to!