Collective intelligence refers to the knowledge that emerges from the collaboration and competition of many individuals. It can be harnessed by creating platforms that allow users to contribute information and materials or take what they need. While this wider range of sources increases accuracy and views, it requires many contributors to be truly effective. Collective intelligence shapes what we see online through social networks and websites that use user activity to improve recommendations. It is an important concept as it helps to organize information on the internet and allows individuals to have input in how the online environment develops.