From Google: Google Search is a Web search engine that offers standard Internet word-search functionality, along with more than 22 special features, like synonyms, weather forecasts, time zones, stock quotes, maps, earthquake data, movie showtimes, airports, real-estate listings; sports scores, and package tracking. There are special features for numbers: prices; temperatures; money/unit conversions ("10. 5 cm in inches"); calculations ( 3*4+sqrt(6)-pi/2 ); package tracking; patents; area codes; plus rudimentary language translation of displayed pages. Google Search provides many options for customized search, such as: exclusion ("-xx"), inclusion ("+xx"), alternatives ("xx OR yy"), and wildcard matching ("xx*").
read more +