There seems to continue to be a place for a variety of shopping engines with different stengths--some focusing on price comparison and others on product research. I think that's a good think. Do we really want one player (like Google) to completely dominiate all aspects of this market?
Personally, I AWAYS use multiple engines when shopping, and for that reason, I recommend RoboShopper.com
, which is a meta comparison shopping and product research
site that makes it easy to query multiple shopping engines.