Social bookmarking in SEO is the process of tagging a website page with a browser-based tool so that you can easily visit it again later. Instead of saving social media posts to your browser bookmarks, you can use different platforms’ features to bookmark posts. Because the bookmarks are online, you’ll be able to access them anywhere, from any device with an internet connection. Social bookmarking sites began as simple resources for social media and content marketers. Today, they’re diverse and dynamic online communities, where users discuss links and develop groups based on shared relevancy.