Vivisimo
I know Google is the most popular search engine and almost everyone uses it to search the Web. Of course, there is no doubt about the efficiency of Google in providing Web users with an easy and quick answer to any kind of questions. However, the quickest answer is not necessarily the best answer. Sometimes it might be the best but not always. The problem is you never know what else exist on the Web that could be retrieved by the search tool for you. Anyway, what I am trying to say is “do not use only one search engine all the time”. It might be worth trying alternative tools occasionally. Who knows it might work better. There are other search tools which are very good. Vivisimo is one of them.