Mobile social media tools can be used for marketing research, communication, sales promotions/discounts, informal employee learning/organizational development, relationship development/loyalty programs, and e-Commerce. Other applications include marketing research, communication, sales promotions and discounts, relationship development and loyalty programs, and informal employee learning/organizational development is facilitated by the social media.
Social media is being used in a range of court cases including employment law, child custody/child support and insurance disability claims. After an Apple employee criticized his employer on Facebook, he was fired. When the former employee sued Apple for unfair dismissal, the court, after seeing the man's Facebook posts, found in favour of Apple, as the man's social media comments breached Apple's policies. After a heterosexual couple broke up, the man posted "violent rap lyrics from a song that talked about fantasies of killing the rapper’s ex-wife" and made threats against him. The court found him guilty and he was sentenced to jail. In a disability claims case, a woman who fell at work claimed that she was permanently injured; the employer used her social media posts of her travels and activities to counter her claims.
Observers have noted a range of positive and negative impacts of social media use. Social media can help to improve an individual's sense of connectedness with real or online communities, and can be an effective communication (or marketing) tool for corporations, entrepreneurs, nonprofit organizations, advocacy groups, political parties, and governments. At the same time, concerns have been raised about possible links between heavy social media use and depression, and even the issues of cyberbullying, online harassment and "trolling". Currently, about half of young adults have been cyberbullied, and of those, 20% said that they have been cyberbullied regularly. Another survey in the U.S. applied the Precaution Process Adoption Model to cyberbullying on Facebook among 7th grade students. According to this study, 69% of 7th grade students claim to have experienced cyberbullying, and they also said that it was worse than face-to-face bullying. Both the bully and the victim are negatively affected, and the intensity, duration, and frequency of bullying are the three aspects that increase the negative effects on both of them.