Akonter social bookmarking site founded in 2011, is a website for saving web pages or favorite URLs public or private, and save multiple favorite websites on one page, it's specialized for business, shopping, marketing and services tags It can be used to attract more target audience.
EverSync - Everhelper - Eversync
BibSonomy - BibSonomy is a system for sharing bookmarks and lists of literature (BibTex format).
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
Tagpacker - A free tool to quickly collect, organize, and share your favorite links.
Floccus - Sync your web data across browsers and devices via your Nextcloud!
Diigo - Diigo is a powerful research tool and a knowledge-sharing community