About The Expo The Arlington Teen Summer Expo is an annual event that links Arlington teens with summer jobs, internships, and volunteer opportunities. The Expo, sponsored by the Arlington Employment Center, is offered free of charge... to hundreds of qualified teens and those advertising summer positions. The Expo is free for all participants and free exhibit space is available although you need not attend to post a position. To register a summer job, internship, or volunteer positions, please click on expo registration. Return to the Arlington Teen Summer Expo Home page!