Google Search Options - URL parameters and syntax

Search where?	Operators
Web Search	allinanchor:, allintext:, allintitle:, allinurl:, cache:, define:,filetype:, id:, inanchor:, info:, intext:, intitle:, inurl:, link:,related:, site:
Image Search	allintext:, allintitle:, author:, group:, insubject:, intext:,intitle:
Directory	allintext:, allintitle:, allinurl:, intext:, intitle:, inurl:,location:, source:
News	allintext:, allintitle:, allinurl:, intext:, intitle:, inurl:,location:, source:
Product Search	allintext:, allintitle: