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-- Alternative Search Engines
---- Wolfram Alpha To Launch "Pro" Version For User Data Manipulation
engine - 12:20 pm on Feb 8, 2012 (gmt 0)Thread source:: http://www.webmasterworld.com/alternative_search_engines/4415143.htm
There's an interesting stat here about Siri.
I read that Siri accounts for about 25% of the queries on Wolfram Alpha.
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