I recently created a side project to explore a few tech areas I wanted to learn more thoroughly. One of those areas was how to implement AJAX in Django using jQuery.
In a nutshell, the site, TruthTruthLie.me (update 3/5/2013: the site is temporarily offline as switch my Facebook Connect implementation from django-socialregistration to django-social-auth) presents three facts about you and challenges your friends to click on the one that is a lie.
When your friend clicks on a fact, I send the clicked fact_id via AJAX to a url. A Django url pattern routes the click to a view where I check what “type” the fact is, return the result via JSON to the client and update the page dynamically without a page refresh.