http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Selecting, scraping, and sampling big data sets from the internet
This case study uses a study of fan blog commentary to explain how researchers decide precisely what text to gather from the internet as well as how they identify the locations of that content, decide exactly which website from which to gather data, and how to get the data from the internet into text files for analysis.
Lynne M. Webb & Danna M. Gibson & Yuanxin Wang & Hao-Chieh Chang & Marceline Thompson-Hayes.