Web2.0 Website Introduction -- Social Network Bookmarking

I have made a summary of the social network bookmarks that I know about and would like to share it with everyone. Users can use them to collect, classify, and aggregate interesting online information such as news, pictures, data, websites, etc. At the same time, they can also conveniently share their personal collections with others and gather information from other users' collections. Social network bookmarks make the sharing and exchange of information simpler and more convenient.