WebRSS - RSS Widget - RSS to HTML - Display RSS for Free with Web RSS
Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
Feedity - Create RSS feed for any webpage or podcast. Extract data and turn dynamic websites into spreadsheet or API. Feedity is an online RSS feed generator and podcast feed builder tool. Display feeds on website.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
FiveFilters Feed Creator - Create feed from elements (e.g. links) extracted from a given web page
Better Uptime - We call you when your website goes down