WebJames is a HTTP server for RISC OS.
Features include:

    Supports GET, POST, HEAD, PUT and DELETE requests
    Content negotiation
    Cache for recently requested files
    Configurable logging of all requests
    Password protection
    Redirection
    Customisable error reports
    Standard CGI interface
    Custom CGI interface which allows multi-tasking scripts
    Supports Server Side Includes (SSI)
    Built in handler for PHP
    Support for name-based virtual hosts