WolframAlpha – Knowledge Search Engine

If you ask me what is your second favorite search engine, I would say Wolframalpha. Wolframalpha is a search engine which gives you all the results from mathematical calculation (x^3 – 4x^2 + 6x – 24 = 0) to astronomy (next solar eclipse). One of the best thing about this search engine is that the presentation of the search results which are far better than giant search engine, Google. You should try this out as an alternative to Google.