XMarks is a cloud based bookmark management platform.

Kifi creates a full-text index of every web page shared, making them easier to find in Slack, Google search.

Listango is an online bookmark manager that lets you save your favorites online and access them from anywhere.

Papaly is a simple social bookmarking tool to manage links.

GC Bookmarks is a cloud based bookmark manager.

Bubblehunt is search platform, where you can create own search system.