Following are links to internships and scholarship-internship programs offered by the federal government and other institutions:
American Indian Science and Engineering Society (AISES) Internships
Foreign Agricultural Services (FAS) Summer Internship Programs
Hispanic Association of Colleges and Universities National Internship Program
Mosaics in Science - STEM Opportunities in National Parks
Native American Congressional Internship
Oak Ridge Institute for Science and Education Federal Internships, Research, & Fellowships
Society for Advancing Chicanos/Hispanics & Native Americans Internship & Job Board
USAJobs Federal Government Pathways Program for Students & Recent Grads
Workforce Recruitment Program for Students with Disabilities (Federal Government)