Folder2Feed is Java application that monitors folders (local or network
shares) for updates and generates feeds which can then be served by a
web server or can be simply picked up from a shared folder by an
aggregator. Both RSS and Atom feeds are supported. Folder2Feed has
various customizable options, for e.g. including only certain file
types, including or excluding folders etc.
This project is hosted on SourceForge.net and has it's own subdomain: http://folder2feed.nogoodatcoding.com