social bookmarking
online service which allows users to add, annotate, edit, and share bookmarks of web documents
en-US/ˈsoʊʃəl ˈbʊkmɑɹkɪŋ/
en-GB/ˈsəʊʃl ˈbʊkmɑːkɪŋ/
online service which allows users to add, annotate, edit, and share bookmarks of web documents