Bookmark OS is a bookmark manager and organizer.

Diigo is a powerful research tool and a knowledge-sharing community.

Evernote Web Clipper is a simple extension for your web browser that lets you capture full-page articles, images, selected text, important emails, and any web…

Instapaper browser extension to save links for offline reading.

inboard (Pinboard.in) is a social bookmarking website.

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

lumio is an online content organizing platform.

elCurator let you bookmark, read and collaborate with ease.

historious is a single-click bookmarking search engine.

Notezilla is a sticky notes app for Windows.

Pocket is a cloud based article snippet and bookmarking platform.

Mercury Reader extension for Chrome (formerly Readability) removes ads and distractions, leaving only text and images.