SmartShell is a Java web application providing a pure HTTP/HTML client for secure shell access (SSH). The userinterface is simple and AJAX based and can be simply customized to fulfill your needs.
Remote Network Browser utilises Samba and ncpfs to provide remote access to Novell and Windows networks through a "Windows explorer"-style interface. It relies only on ncpfs or Samba (plus a few utilities supplied with Linux) to operate smoothly.