FeedForAll
Easily create rss feeds. Software allows users to crete, edit and publish rss feeds. New RSS feeds can be quickly and easily created with FeedForAll. Advanced features enable you to create professional looking rss feeds quickly. Existing RSS feeds can be repaired and enhanced with FeedForAll. RSS feeds generated by other means can be automatically repaired, so that they conform to the RSS 2.0 specification.

rss2html Script
A free PHP script, converts RSS feeds to HTML. Users can create webpages that will always display the most current information from the RSS feed, and because the resulting page is pure HTML, it will be in a format friendly to search engine robots. Using rss2html.php webmasters can customize the format and look of the web page created from the feed. The RSS feed's contents can easily be integrated into an existing website's theme. The rss2html.php.

SQL2RSS Script
PHP script, converts MySQL databases to rss feeds based on conditions and queries created by the system administrator.