ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
RSS.app - Monitor the web the way YOU want to.
Zapier - Connect the apps you use everyday to automate your work and be more productive. 1000+ apps and easy integrations - get started in minutes.
FetchRSS - Generate RSS out of any website.
n8n.io - Free and open fair-code licensed node based Workflow Automation Tool. Easily automate tasks across different services.
FiveFilters Feed Creator - Create feed from elements (e.g. links) extracted from a given web page