Social media has transformed journalism by allowing anyone to participate and share news online. Stories are initially shared on Twitter as breaking news, then expanded on with links, photos and videos on platforms like Facebook and Twitter. This allows the public to comment and crowdsource information, but also threatens investigative journalism. While social media engages more people in the news, it also decreases trust in information shared on these platforms compared to traditional media. Overall, social media has changed how journalism is distributed, consumed and participated in by the public.