Huginn
Open Source
Huginn is a system for building agents that perform automated tasks for you online.
Wachete
Freemium
Wachete is a website content monitoring platform.
Update Scanner
Open Source
Update Scanner is a Firefox addon to monitor web pages for updates. Useful for websites that don't provide Atom or RSS feeds.
WebSite-Watcher
Commercial
WebSite-Watcher detects website updates and highlights all changes in the text.
Compare Distill Web Monitor with alternatives
Compare Huginn and Distill Web Monitor and decide which is most suitable for you.
Compare Update Scanner and Distill Web Monitor and decide which is most suitable for you.
Compare Wachete and Distill Web Monitor and decide which is most suitable for you.
Compare WebSite-Watcher and Distill Web Monitor and decide which is most suitable for you.