Google Dorking

First of all - and the important part - it's legal! It's all indexed, publicly available information. However, what you do with this is where the question of legality comes in to play...

A few common terms we can search and combine include:

Term	Action
site	Searches for content within specific website
filetype	Search for a file by its extension (e.g. PDF)
cache	View Google's Cached version of a specified URL
intitle	The specified phrase MUST appear in the title of the page