Originally Posted by ozsubasi
I am not so sure about the goodwill among website owners
but I take your point that they would be hard to shift from the top spot. Either someone would have to come up with something different(and have huge financial resources) or Google will have to make mistakes that turn people away from them.
It has to be the second option because Bing could do very little though financial backup of one of the richest man. +1 could prove to be a mistake that dethrone's Google.