Social media is contributing to increased loneliness and negatively impacting mental health. Spending excessive time on social media can cause isolation and strain relationships, leading to feelings of loneliness.

Users on the Chinese social media platform Sina Weibo do not demonstrate a strong echo chamber effect when discussing vaccine-related topics. Opinion leaders and structural hole spanners act as "bridgers," disseminating diverse topics and communicating with users with different attitudes towards COVID-19 vaccines. This study provides insights into echo chambers and offers strategies for effectively promoting online vaccine campaigns.

Sentiment analysis tools are helpful for monitoring social media opinions, but often lack reasons for sentiment changes. This paper compares classifiers and proposes a Filtered-LDA framework that effectively interprets sentiment on Twitter, identifying reasons for sentiment changes and using filters to remove irrelevant tweets. It also includes a sentiment reasoning dashboard to display representative tweets for each reason.

A study found that a low-cost social media platform effectively encouraged the adoption of an eco-friendly pesticide in rural China. However, concerns about supplier credibility and product authenticity were addressed by having an influencer vouch for the product's credibility.

Social media platforms have implemented crowdsourced flagging systems to combat misinformation, but users' own biases and tolerance for opposing viewpoints influence their participation. A simulation model explores how intolerance becomes attractive, leading news sources to align with intolerant users. This model supports low-tolerance states with rational users.

Fact checking on social media, especially regarding COVID-19, helps users identify accurate information and protect themselves from harmful claims. Homophily reduces the likelihood of fact checking, while active engagement increases it.

COVID-19 is the third leading cause of death in the US, with unvaccinated individuals at high risk due to misinformation on social media. Calls for social media companies to take action against misinformation are made, emphasizing partnerships and actions to combat the infodemic.

Social media platforms cause harm and current governance approaches focus on removing individual content and accounts, neglecting the impacted individuals and communities. The article proposes shifts in governance to recognize and repair harm.

Toxic behaviors on social media harm relationships on platforms like Facebook and Instagram. These behaviors include accusations, insults, and inappropriate use of emoji.

Slovak eco-innovation companies struggle with communication on social media, lacking guidance and information on effective strategies. Further research and education is needed in this area.