The Smart Snippets extension provides a friendly way of managing pieces of content that are reused in multiple places over a website (via CKEditor or Rich text fields), making it easy to update content in a centralized way.
Once an editor places a smart snippet in website content, it can be modified from Smart Snippets content app. Its latest published content will be rendered on all pages where it has been selected. The content app provides as well the usage count of snippets. When editing a smart snippet, in its usage tab links are provided to the pages where the smart snippet is selected.