All functions

bing()

Search Bing

crossref()

Find DOI's and other bibliographic metadata

duckduckgo() ddg()

Search Duckduckgo

github()

Search GitHub

google()

Search Google

google_scholar()

Search Google Scholar

qwant()

Search Qwant

r_bloggers()

Search r-bloggers.com

rdocumentation() rdoc()

Search rdocumentation.org

rdrr_io() rdrr()

Search rdrr.io

reddit()

Search Reddit

stackoverflow() so()

Search Stackoverflow

twitter()

Search Twitter

web()

Access Domain

wikipedia() wp()

Search Wikipedia

wolframalpha() wolfram()

Search WolframAlpha