XMLRPC. Very easy to use. There is a solid xmlrpc client in python > 2.2 http://www.python.org/doc/2.6/library/xmlrpclib.html http://www.python.org/doc/2.6/lib

XMLRPC. Very easy to use. There is a solid xmlrpc client in python > 2.2 http://www.python.org/doc/2.6/library/xmlrpclib.html http://www.python.org/doc/2.6/library/xmlrpclib.html A small criticism : some network overhead (it's XML's fault).