OnlineDigitalTrends delves into the algorithms behind TikTok, Instagram, Facebook, and YouTube. These platforms use complex AI models to decide what users see, often prioritizing engagement over accuracy or ethics. This raises concerns about misinformation, echo chambers, and mental health. At the same time, algorithms are powerful tools for creators and brands to reach targeted audiences. As digital literacy grows, users are becoming more aware of algorithmic manipulation. Regulation and transparency are becoming hot topics globally, pushing tech companies to reconsider how their algorithms shape public discourse and cultural trends.