These academic sources provide a comprehensive analysis of the ethical, legal, and methodological complexities associated with digital and social media research. The texts emphasize that while platforms like Twitter offer vast opportunities for real-time data collection, they challenge traditional standards for informed consent, participant anonymity, and the distinction between public and private domains. Multiple frameworks from organizations like the British Sociological Association advocate for "situational ethics," suggesting that researchers must remain flexible and reflexive when navigating the "messy" reality of online data. Case studies, such as the Samaritans Radar application and Facebook's emotion study, illustrate how failing to account for user expectations of privacy can lead to significant public backlash and ethical breaches. Practical guidance is also provided through PhD research examples and institutional ethics forms, which outline procedures for secure data storage and the retrospective seeking of consent. Ultimately, the collection serves as a guide for scholars to balance scientific inquiry with a fundamental duty of care toward digital subjects.