SITE:
Targets a specific type of domain (.gov, .edu, .org, .com, etc), county (.BZ for example for Brazil), or just one website.
Search a specific source's content: could be on its website or included on another site.
One can search for word(s) with a particular word in the title tag:
Find the most recent cache of a webpage.
Search for the definition of a word or phrase.
To find related or similar sites.