Web hosting is a service that allows individuals and organizations to make their websites accessible on the internet. It involves storing website files on servers, which are powerful computers that serve content to users when they enter a web address. Popular hosting services include GoDaddy, Bluehost, and HostGator. There are various types of web hosting, such as shared hosting, where multiple websites share the same server resources, and cloud hosting, which utilizes a network of servers to provide scalable resources. Choosing the right hosting service is crucial for website performance and reliability.