XMarks is a cloud based bookmark management platform.

TheBrain, formerly branded PersonalBrain, is a mind mapping and personal knowledge base software.

Bookmark Manager is a Google's cloud bookmark manager.

Deskhot is an online platform that provides a bookmarking service to manage web content and data mining.

Raindrop.io syncs bookmarks into the cloud and makes them beautiful as well as easy to search.

GC Bookmarks is a cloud based bookmark manager.

lumio is an online content organizing platform.