Check out what ivanpetrenko has contributed to FileCart
Suite of professional Ajax components for building rich and interactive web UI
JTree is a professional Java tree menu applet with XML support, dynamical loading, cross-browser/multiplatform compatibility and powerful client-side API. This component is highly useful for representation of structured data.
Urfin is a search engine that helps you to find files in your local Windows network. It has all information about files located in shared directories on computers in your office. Using any browser users can access Urfin as a usual Web site.