Auction Alfie can help you search across multiple auction and classified websites without filling out the same forms all the time.
Auction Alfie allows you to fill in one search form, then shows you the results on each of the auction and classified websites directly.
Example search: Apple iPod
Kelkoo price comparison is also included for UK searchers to make it easy to compare prices of second hand stuff against new products.
Kinda. Auction Alfie is the best of both worlds: half search engine, half price comparison site.
It's a shopping search engine that shows you products from the relevant websites in situ.