DuckDuckGo is an excellent alternative to using Google. As well as providing good results, the use of many short cuts that are quick and easy to remember (such as !images for example) DuckDuckGo is very strong on privacy, and doesn't store your search results. They're currently attacking Google both on that front and also on the concept of filter bubbles. This is a term coined by Eli Pariser, who says that Google is able to identify what you're interested in and adjust the results you see accordingly. Consequently you see more of what you like, and less of what you don't, which in turn reinforces your world view, and excludes important stuff to further down the list of results.