Table 1.

Classification of user-generated data in social media.

Content	Description
History and culture	Product launch time; origin of brand name; ownership; market share; slogan and ads; brand stories; manufacturer and distribution location; achievements
Major products	Varieties of products; flavor; packaging; length; tar content, nicotine content, and carbon monoxide content; price
Health warning	Warnings about the side effects of smoking
Company websites	Home pages of tobacco companies
Web-based tobacco shops	URLs of Web-based tobacco shops