Java servlets (which removed the process-per-request limitation of CGI), JSP (builds upon servlets), JSF (like an advanced JSP but maybe something more), EJB, J2EE (now called JEE) ??? which includes servlets, JSP and EJB in it, Python with CGI or with Django or any other web app framework, PHP with CGI or CakePHP or other frameworks, Perl with CGI or with Catalyst or other framework, Ruby with Ra