The loaded R package versions (in the order mentioned in the chapter):
RCurl 1.95-4.1 (CRAN)
rjson 0.2.13 (CRAN)
plyr 1.8.1 (CRAN)
XML 3.98-1.1 (CRAN)
wordcloud 2.4 (CRAN)
RSocrata 1.4 (CRAN)
quantmod 0.4 (CRAN)
Quandl 2.3.2 (CRAN)
devtools 1.5 (CRAN)
GTrendsR (BitBucket @ d507023f81b17621144a2bf2002b845ffb00ed6d)
weatherData 0.4 (CRAN)
The related R packages:
jsonlite 0.9.16 (CRAN)
curl 0.6 (CRAN)
bitops 1.0-6 (CRAN)
xts 0.9-7 (CRAN)
RJSONIO 1.2-0.2 (CRAN)
RGoogleDocs 0.7 (OmegaHat.org)
Related reading:
Chrome Devtools manual at https://developer.chrome.com/devtools
Chrome DevTools course on CodeSchool from http://discover-devtools.codeschool.com/
XPath on Mozilla Developer Network from https://developer.mozilla.org/en-US/docs/Web/XPath
Firefox Developer Tools from https://developer.mozilla.org/en-US/docs/Tools
Firebug for Firefox available at http://getfirebug.com/
XML and Web Technologies for Data Sciences with R by Deborah Nolan, Duncan Temple Lang (2014), Springer
The jsonlite Package: A Practical and Consistent Mapping Between JSON Data and R Objects by Jeroen Ooms (2014) available at http://arxiv.org/abs/1403.2805
Web Technologies and Services CRAN Task View by Scott Chamberlain, Karthik Ram, Christopher Gandrud, and Patrick Mair (2014) available at http://cran.r-project.org/web/views/WebTechnologies.html