Macromedia) CGI and/or Perl (open source) Java , e.g. J2EE or WebObjects Lotus Domino PHP (open source) Python , e.g. Django (web framework) (open source) Ruby , e.g. Ruby on Rails (open source) Smalltalk e.g. Seaside , AIDA/Web SSJS Server-Side JavaScript, e.g. Aptana Jaxer, Mozilla Rhino Websphere (IBM proprietary) .NET (Microsoft