Links are connections between different pieces of information on the internet. They allow users to navigate from one webpage to another by clicking on highlighted text or images. These connections are essential for browsing and discovering new content, as they create a web of information that is easily accessible. In the context of websites, links can be categorized into two main types: internal links, which connect pages within the same website, and external links, which direct users to different websites. Both types enhance user experience and improve the visibility of content in search engines.