There are many meta search engines out there. A lot of them aren't all that impressive and several of them are routine and rather boring.
I use a lot of search engines since I am a big search engine fan. There is a meta search engine that has been around for a couple of years that I like to test a few times a year and as far as meta search engines go, it isn't bad. You might conduct searches different from the ones I did and arrive at the conclusion that it isn't all that good.
When you search, it gets the results, compiles them and represents them in a series of interactive maps. FlashPlayer is used to draw the interactive maps.
The name of this meta search engine is KartOO. It can be searched in several different languages. Here is a link to the site so you can take a look at it, conduct some searches and see what you think about it
KartOO visual meta search engine