• http://www.bu.edu/astronomy/other-pages/www-links/undergraduate-research-opportunities-links/
• http://www.surf.caltech.edu/
• http://aas.org/education/REU.php
• http://aas.org/career/summer.php
• http://www.nsf.gov/crssprgm/reu/list_result.cfm?unitid=5050
• http://intern.nasa.gov/
• http://phobos.physics.uiowa.edu/~clang/reu_info.html
• http://www.lpi.usra.edu/lpiintern/
• http://www.acsu.buffalo.edu/~tgregg/pggurp.html
• http://www.jhuapl.edu/employment/summer/