LeafRSS is designed to be a low-maintenance, learning RSS aggregator, with the ability to publish the aggregated results either in a standalone website, an rss feed for news readers, or as an embedded template within an existing site.
PodAdmin is a very simple web-based podcast management tool. Upload your new episode via web form, PodAdmin will then grab title and description from the ID3 tags and generate a new RSS feed on your website. PodAdmin uses PHP and MySQL.