Shopping, Comparison, Research Online InSiteFo provides searchers with lots of options when searching. Basically you click on a subject area that interests you once you've input your search term. Examples are Shopping:Books, Shopping:Gifts, Research:Questions, Science and Technology:Internet:Alexa and so on. There really is a very wide variety of options, and I like the fact that it brings a lot of these together in one place for you - a nice multi search engine.
I wasn't so keen on the interface though - it's very retro (read old fashioned) and looks as though it was first put together in 2001 and hasn't been updated ever since. I also wasn't keen on the fact that when you search it can open up several new windows, plus a menu window, so you're quickly overwhelmed with different screens to look at. Then you have to close them all to carry on. This really isn't helpful, and I'd prefer a side by side comparision.
However, its strength is, as I said in the sheer variety of search options, and if you can get past the interface it's worth an explore.