Tweetflick - Save, organize & find Tweets to get the most out of Twitter
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
Bookmark OS - Bookmark OS is like Mac or Windows optimized for bookmarks.
Zapier - Connect the apps you use everyday to automate your work and be more productive. 1000+ apps and easy integrations - get started in minutes.
Bookmark It - Create awesome notes on YouTube videos
n8n.io - Free and open fair-code licensed node based Workflow Automation Tool. Easily automate tasks across different services.