411 REFERENCE · Wikibooks
How To Search/NOT-negative
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
NOT - NOT
skunk -tomato
This is a list of searches that use "NOT" for the NOT boolean operator. Typing the example above in a search box would find all items searched which have the word "skunk" but not the word "tomato" in it.
Search Engines/Software/Interfaces
../Google/
../Yahoo/