Abstract and Keywords
The Web today offers a tremendous number of sites and services that can provide useful data for researchers. Websites ranging from online social networks (e.g., Facebook, Twitter), to online marketplaces (e.g., eBay, Craigslist), to recommendation services (e.g., Yelp, TripAdvisor) can be used to examine human behavior at scale. However, collecting data from these services brings up a host of technical, legal, and ethical issues for researchers, and many research communities are still grappling with the challenges that obtaining data from these services presents. This chapter provides an overview of many such issues, aiming to provide practitioners with specific examples of how various services can be accessed and how different communities have dealt with the ethical and legal challenges that they present.
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