Q:

Nokogiri parse ajax-loaded content

Is it possible for nokogiri to parse content loaded via ajax? If not how would I accomplish this?

A:

Nokogiri can't see the AJAX content because it isn't a Javascript parser, and, as a result, can't interpret it and do the needed request.
What you want is something like Watir, or one of its spinoffs, depending on your OS. They will launch a browser, which can process the Javascript and resulting AJAX request. 
Then, you can request the page's contents, and do your parsing of the DOM using Nokogiri.
The process is too specific for a generic example, but the Watir platform page will point you to the browsers supported. The examples are pretty easy is to figure out, so you should be able to piece something together nicely. 

