walkman - 4:50 pm on May 4, 2011 (gmt 0)
I imagine that none of the big insurance comparison sites like Go Compare, Elephant or Compare the Meerkat (sorry, Market) are worried much about Google and I wouldn't say that they don't have on-line businesses.
Define 'much'. Will they survive? Sure but it will cost them money in lost sales and added advertising.
Someone can survive too without Google and Bing, living in a car on $4 a day somewhere.