My web site uses static HTML documents hosted on a server with no support for server side scripting. I would like to show news feeds on my web site, for example stackoverflow questions.
I've added feeds to my web site using Google's AJAX Feed API it really requires minimal effort. Run the wizard, copy the code and paste it on your site.
Oddly, there are alternative formats available that the wizard doesn't show you. So if you want to use jQuery, there is a jQuery Google Feed Plugin that you can get a tabbed feed output, or you can just look at the plugin source to see how to do it.
If you are trying to display images from a feed then you could take a look at cooliris (for your site tab)- which is very nice, but maybe a little over the top.
You can write a simple app on GAE that just takes your RDF and converts it to JSON. (Or google for one?) On client side, you can use jQuery's $.getJSON with callback.