Feed43
Even today, some Web sites don’t have RSS feeds, so Feed43 is a “free online service converts any web page to an RSS feed on the fly”:
Feed43 engine converts free-form HTML or XML documents to valid RSS feeds by extracting snippets of text or HTML by means of applying search patterns, and then joining these snippets together using output templates to form user-friendly content of feed's items. The principle of extracting specific data from source documents is also known as “HTML scraping”.
