Cornerstone content is any page of long-form, high-quality content on a website that serves as the foundation for other pages of content on the same website.nnIn masonry, a cornerstone is the first stone that's set in a foundation project. After the cornerstone has been set, the other stones are attached to it.nnWhile cornerstone content doesn't involve bricks or stones, the concept is the same: Each page of cornerstone content acts as a foundation by supporting other pages of content.nnWhen you create cornerstone content, you can link to other pages of related content on your website.nnVisitors to the cornerstone content page can then click these links to check out the related content.