CKEditor - Real-time collaborative future-ready rich text editor
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
TinyMCE - TinyMCE is a content editor that functions as a plug-in for Wordpress websites.
Linker - Cloud based bookmark manager
Trumbowyg - Feature-packed WYSIWYG editor in only 15kB of JavaScript
Bookmark OS - Bookmark OS is like Mac or Windows optimized for bookmarks.