Bangs provide an easy way to get results from another search engine when Clew's own index is less suitable. Simply put the bang of your choice at the beginning of your search query.
For example, searching !w Geoffrey Landis will pull up Wikipedia's page on Geoffrey Landis, a NASA scientist and award-winning science fiction author.
All Bangs
Bing
!bing [search query]
BookWyrm
!bookwyrm [search query]
Caniuse
!caniuse [search query]
DuckDuckGo
!duckduckgo [search query]
Aliases: !duck, !ddg, !d
DuckDuckGo Lite
!duckduckgolite [search query]
Aliases: !dl, !ddgl
Google Search
!google [search query]
Aliases: !gl
Project Gutenberg
!gutenberg [search query]
Aliases: !gb
Marginalia Search
!marginalia [search query]
Aliases: !margin, !ma
MDN Web Docs
!mdn [search query]
Mojeek
!mojeek [search query]
Aliases: !mo, !mj
ooh.directory
!oohdirectory [search query]
Aliases: !ooh
OpenStreetMap
!openstreetmap [search query]
Aliases: !map, !m
StackExchange Network
!stackexchange [search query]
Aliases: !se
StackOverflow
!stackoverflow [search query]
Aliases: !so
Stract
!stract [search query]
Wikipedia
!wikipedia [search query]
Aliases: !wiki, !w
Wolfram Alpha
!wolframalpha [search query]
Aliases: !wa
Yahoo Search
!yahoo [search query]