Answer: Netnography
Step-by-step explanation:
The netnography is one of the type of online research method that is used for understanding the social interaction by monitoring the blogs, room and the personal websites for assess the customer different types of opinions.
The netnography is term which refers to the practicing of different types of research and it includes the data analysis, representation and the research ethics.
According to the given question, harry is engaging in the practicing of the netnography as it systematically the personal websites and the also blogs that the company about the health drinks.
Therefore, Netnography is the correct answer.