Bookmark OS - Bookmark OS is like Mac or Windows optimized for bookmarks.
ViralStat - All-in-one tool for cross-platform social video analytics
BookmarkSheet - Your bookmarks in Google Sheets
You-Get - Command-line utility to download media contents from the web
Annotate.tv - Optimize your learning on YouTube
Social Aider - Social Aider is an affordable, user-friendly social media management tool that helps businesses to enhance their marketing campaigns.