The REU programs also extend to specialized fields in physics and other areas related to physics.  A partial list of these opportunities is included below.

DOE Research Labs

Topic: All sciences
URL: www.set.lanl.gov/programs/urs

Argonne National Lab

Topic: All sciences
URL: www.anl.gov/OPA/prgs.htm

NSF Opportunities

Topic: All sciences
URL: www.nsf.gov/reu

Office of Naval Research

Topic: All sciences
URL: www.awu.org/onr

Univ. of Wisconsin Madison

Topic: Physics & Engineering
URL: www.studentservices.engr.wisc.edu/diversity/sure/

NIST/SURF program

Topic: Physics/Mat Sci  URL: www.physics.nist.gov or www.msel.nist.gov

Univ. of Central Florida

Topic: Optics
URL: www.creol.ucf.edu/reu/forms.html

Mt. Wilson Obs. (U-WI)

Topic: Astronomy
URL: www.astro.wisc.edu/~faison/curea/curea.html

Georgia State University

Topic: Astronomy
URL: www.newton.phy-astr.gsu.edu/perera/reu.html

Cornell

Topic: Material Science
URL: www.msc.cornell.edu/educational/reu.html

Johns Hopkins

Topic: Material Science
URL: www.pha.jhu.edu/groups/mrsec/reu.html

Washington Univ., St. L.

Topic: Civil Engineering
URL: www.cive.wustl.edu

The following are points of contact for more permanent positions after graduation:

AFIT (Work study)

Topic: Aerospace Sci
URL: www.afit.af.mil/Schools/EN/ENP/ENPhome.html

USDA Colorado State Univ.

Topic: Atmospheric science
URL: www.uvb.nrel.colostate.edu/UVB/

Peace Corps

Topic: All sciences/educ
URL: www.peacecorps.gov