Bookmarking keep track your valuable data and tell the search engine algorithm your data is valuable. Bookmarking increase your page authority and domain authority. That improves your keywords rank in search engine.
It means bookmarking a website on social platforms in order to increase the number of visitors on that website. It is a great way for users to manage, organise, search and store many useful web pages and blogs that they come across, and that they would like to share with others or may be revisit them. These websites find content based on the user's interest and their feed is accordingly personalized, and this allows users with similar interests to connect, and view websites that they like and share articles that they find useful.