IS there a way to search among the community for JSFiddle specific code?
Fiddles that would have been tagged by categories, for example.
Yes, there is a way.
Go to google.com and type
site:jsfiddle.net <search term>
I think this is not possible per se. If you know a user's name, it seems that you can list that user's fiddles. See the jsfiddle API for an example. This one is straight from their docs -- The URL structure is: