Summer Institute for Training in Biostatistics (http://www.nhlbi.nih.gov/research/training/summer-institute-biostatistics-t15)
Mayo Clinic: http://www.mayoclinic.org/jobs/internships.html
Census bureau: http://www.census.gov/hrd/www/jobs/stu_temp.html
U.S. Government: http://www.usajobs.gov
Dordt College in Sioux City, Iowa: summer research program in statistical genetics and biostatistics; undergraduate students with prior coursework in statistics are invited to apply; application deadline; January 31, 2012; see http://www.dordt.edu/academics/programs/math/statgen/