Today i had found this link, which exposes the various services provided by google search engine…note it, through search engines. it gives a list of commands to be used for quicker search.
cache: Display Google’s cached version of a web page.
allinanchor: All query words must appear in anchor text of links to the page. allinanchor: S-and-S Coupling (Search for pages in which the anchor text contains “S-and-S coupling”.)
inanchor: Terms must appear in anchor text of links to the page.
restaurants inanchor:gourmet (Search for pages on restaurants for which links to the page mention the word “gourmet”.)