So I tested Wolfram Alpha for fun
Its not google, but its fun to use. Its like one of those AI ask-a-question-and-it-will-answer-you kind of thing. Only it is actually scientific. Try asking the following questions:
Are you skynet?
what is the answer to life, the universe and everything?
Verdict: I still like google. WA will just be number 2🙂
PS: the second question was already answered by google years ago😛