Django doesn't natively provide AJAX support other than [http://docs.djangoproject.com/en/dev/topics/serialization/ serializers to JSON and XML]. Here are some resources to make it easier.

== Libraries ==
 * Easy to use AJAX libraries for Django: http://www.dajaxproject.com

== Other relevant tools ==
 * JSONResponse like HttpResponse in views: http://chronosbox.org/blog/jsonresponse-in-django/
 * PrototypeJS: http://www.kelvinism.com/tech-blog/simple-ajax-django/

== Tutorials and other resources == 

 * Another similar link (but more indepth) is http://www.willarson.com/blog/?p=36
 * Reusing forms to do AJAX validation: http://toys.jacobian.org/presentations/2007/oscon/tutorial/#s67
 * Doing server-side form validation with Dojo:  (old-school style): [wiki:AJAX/Dojo/RefactoredFormSubmit]
 * Quick learn: http://lethain.com/entry/2007/dec/11/two-faced-django-part-5-jquery-ajax/