via wikipedia

• link:url Shows other pages with links to that url.
• related:url same as “what’s related” on serps.
• site:domain restricts search results to the given domain.
• allinurl: shows only pages with all terms in the url.
• inurl: like allinurl, but only for the next query word.
• allintitle: shows only results with terms in title.
• intitle: similar to allintitle, but only for the next word. “intitle:webmasterworld google” finds only pages with webmasterworld in the title, and google anywhere on the page.
• cache:url will show the Google version of the passed url.
• info:url will show a page containing links to related searches, backlinks, and pages containing the url. This is the same as typing the url into the search box.
• spell: will spell check your query and search for it.
• stocks: will lookup the search query in a stock index.
• filetype: will restrict searches to that filetype. “-filetype:doc” to remove Microsoft word files.
• daterange: is supported in Julian date format only. 2452384 is an example of a Julian date.
• maps: If you enter a street address, a link to Yahoo Maps and to MapBlast will be presented.
• phone: enter anything that looks like a phone number to have a name and address displayed. Same is true for something that looks like an address (include a name and zip code)
• site:www.somesite.net “+www.somesite.+net” (tells you how many pages of your site are indexed by google)
• allintext: searches only within text of pages, but not in the links or page title
• allinlinks: searches only within links, not text or title

Public schools are ranked according to a ratio devised by Jay Mathews: the number of Advanced Placement or International Baccalaureate tests taken by all students at a school in 2004 divided by the number of graduating seniors.

More…

• There are 3.22 Million Indians in America
• 38% of Doctors in America are Indians.
• 12% of Scientists in America are Indians.
• 36% of NASA employees are Indians.
• 34% of MICROSOFT employees are Indians
• 28% of IBM employees are Indians
• 17% of INTEL employees are Indians
• 13% of XEROX employees are Indians