Another way to find camps to work at is to search for camps using http://find.acacamps.org/ because I know in the past, there were not too many jobs listed under the job listing.
campjobs.com is another resource, http://www.campresource.com/summer-camp-jobs/ is one I used when I first started.
http://www.campchannel.com/jobboard/ is one I also used, but I would suggest searching for camps using the http://find.acacamps.org first because alot of camps may not advertise and alot of camps who do advertise, do so on many of the same sites I listed
