Using your summer productively will greatly improve your chances of being accepted to medical or dental school. Below are links to a large number of schools and programs that offer summer research opportunities to undergraduates.
American Society for Microbiology Undergraduate Research Fellowship
Baylor School of Medicine - S.M.A.R.T. Research Program
Carnegie Mellon University Summer Undergraduate Research Program (SURP)
Cold Spring Harbor Labs - Summer Undergraduate Research Program
Cornell University - Summer Research Programs
Duke University - Mechanisms of Behavior
Emory University - Summer Undergraduate Research Experience (SURE)
Georgia Institute of Technology
Indiana University
Indiana University - Research Experience in Molecular Biology and Genetics
Lawrence Livermore National Laboratory- Biology & Biotechnology Research Program
Loyola University Stritch School of Medicine
Medical College of Ohio
Michigan State University - Summer Research Program (Neurosciences)
Mount Sinai - Summer Research Program
New York University - Summer Research Program (Neurosciences)
NIH Research Supplements for Underrepresented Minorities
Northern Arizona University
Pennsylvania State University
Pepperdine University - Summer Undergraduate Research in Biology
The Picower Institute for Medical Research - Summer Research Internships
Roswell Park Research Institute - Cancer Research
Thomas Jefferson University - Institute for Human Gene Therapy
University of California - Berkeley
University of California - Los Angeles
University of Georgia Center for Metalloenzyme Studies
University of Iowa
University of Illinois
University of Illinois - Research in Brain, Sensory Systems and Behavior
University of Kansas - Neuroscience Research Program
University of Illinois
Research Experience in Microbiology
University of Wisconsin-Madison
Wadsworth Center
Wayne State University
Wesleyan University
Academy of Natural Sciences of Philadelphia - Collections-Based Research Experience
Boston University - Research in Ecology, Endocrinology and Molecular Biology
Fordham University - Research Experience in Biological Field Studies
Kansas State University - Research Experience in Grassland Ecology
Indiana University - Summer Research in Integrative Study of Animal Behavior
Institute for Ecosystem Studies
University of Colorado at Boulder - Research in Behavior, Ecology, and Evolution
University of Maryland - Research Experience in Estuarine Sciences
University of New Mexico - Sevilleta Long-Term Ecological Research Project
University of Oregon - Summer Program for Undergraduate Research
The University of Montana Undergraduate Environmental Chemistry Research Program (REU)
National Optical Astronomy Observatories - Summer Research Assistantship Positions
Soil Science Society of Americal
University of Maryland, Research Experience for Undergraduates Program
Whitney Laboratory, University of Florida, Research Experience for Undergraduates Program
Woods Hole Oceanographic Institute - Summer Student Fellowship Program
Mallinckrodt Institute of Radiology Summer Research Program
Research and Training Opportunities at the National Institutes of Health
Summer Program - Health Careers Pathway Program (HCPP) University of Kansas
Summer Research Opportunities Minority Medical Education Program
Summer Research & Travel Grants - American Society for Laser Medicine & Surgery, Inc.
Temple University School of Podiatric Medicine - Summer Internship Program
UC-Berkley School of Optometry NEI Summer Research Program
University of California - San Francisco School of Pharmacy
University of Michigan - Health Services Management Summer Enrichment Program
Yale University - Department of Emergency Medicine-Research Associates Program
PURSUE Program (Preparation for University Research of Students in Undergraduate Education)
University of Minnesota - Undergraduate Research Opportunities Program (UROP)
Arizona State University
Baylor University NSF Summer Research Fellowship Program in Physics
Columbia University (High-Energy or Nuclear Physics)
Harvard University - Four Directions Summer Research Program
Northwestern University (Astrophysics)
University of Alabama (Computer Science)
University of California - Santa Cruz (Chemistry/Biochemistry)
University of Oklahoma
University of Rochester
Directory of Experience Opportunities (American Chemical Society)
Case Western Reserve University
University of Pittsburgh - Summer Undergraduate Research Program
University of Minnesota
University of Rochester Medical Center- Graduate Education in Biological Sciences (GEBS)
Argonne National Laboratory
Internships & Research Opportunities in National Facilities and Laboratories
Internships with the Federal Bureau of Investigation
Links to Additional Summer Research Opportunities
Listing: Centers for Disease Control and Behavior
Listing: Howard Hughes Medical Institute
Listing: National Institutes of Health
Listing: National Science Foundation Research Experiences for Undergraduates
Summer Research Early Identification Program (SR-EIP)