To expand on what @crazedpsyc
said, if they eventually offer a JSONP API, we could use that for a Spice instant answer that perhaps looked up users. Alternatively if they are willing to be scraped a Fathead could be built, but this is not optimal because the list of users is bound to constantly change and so the Fathead would quickly be out of date.
However I think you're looking for an instant answer that just provides the given information about Zurker itself. Unfortunately I don't think this is really appropriate for an Instant Answer as they're intended to provide dynamic information for a given source, rather than just providing static information about a single source/entity.
said, if however Zurker's information was in CrunchBase for example, then it would be included in our CrunchBase Fathead and would then surface whenever people search terms related to Zurker.
For now I'm going to mark this as "Not an instant answer". As mentioned if Zurker opens up an API, a more useful instant answer can then be discussed and implemented.