FeedYes is described as 'com gives rss feeds to sites without feeds'. There are more than 10 alternatives to FeedYes, not only websites but also apps for a variety of platforms, including Windows, Linux, Mac and Firefox. The best alternative is Distill Web Monitor, which is free. Other great sites and apps similar to FeedYes are Portia (Free, Open Source), Update Scanner (Free, Open Source), Visualping (Freemium) and FiveFilters Feed Creator (Freemium).
Distill is a web monitoring tool. It can monitor RSS feeds, a webpage or a part of webpage. Alerts in the form of pop-up, audio or emails can be received. Featured highlights: • Content selection from any webpage including iframes.
Portia is an open source visual scraping tool, allows you to scrape websites without any programming knowledge required! Simply annotate pages you're interested in, and Portia will create a spider to extract data from similar pages.