An online encyclopedia is a digital resource that provides a vast collection of information on various topics. Unlike traditional encyclopedias, which are often printed in multiple volumes, online encyclopedias are easily accessible through the internet. They allow users to search for information quickly and often include multimedia elements like images and videos to enhance learning. Popular examples include Wikipedia and Britannica. These platforms are valuable for students, researchers, and anyone curious about the world. They cover a wide range of subjects, from history and science to art and technology. With just a few clicks, users can find reliable information to satisfy their curiosity or support their studies.