http://www.summerjobs.com/

http://www.apexusa.org/SummerJobs.html

http://www.summerjobs.com/do/where/jobtree/US

http://jobsearch.usajobs.opm.gov/index.asp

http://www.coolworks.com/

http://ccusa.com/

http://shopping.yahoo.com/p:Summer%20Jobs%20in%20the%20USA:3000521283

http://usajobs.opm.gov/

http://www.summercampjobs365.com/

http://www.learn4good.com/jobs/language/english/list/summer/usa_united_states/