Cloud storage services allow users to save and access their files over the internet instead of on a physical device like a computer or hard drive. This means you can store documents, photos, and videos securely online, making it easy to retrieve them from anywhere with an internet connection. Popular examples of cloud storage services include Google Drive, Dropbox, and OneDrive. These services often provide a certain amount of free storage space, with options to purchase more if needed. They also offer features like file sharing and collaboration, allowing multiple users to work on the same document simultaneously, which is especially useful for teams and businesses.