Summer Research Internships are generally 6-10 week paid research opportunities available for continuing undergraduate students. Most Summer Programs accept applications between December and March.
The IBP Database and NSF website are excellent sources to find many programs.
The individual programs listed below are organized by Application Deadlines.
All NSF REU Summer Programs can be found here:
Listed in order of Application Deadlines
The program is a 10 week immersion into the life of a research scientist, including a closely mentored 10 week research project, regular lab meetings, seminar series, professional development and career workshops, research symposium and poster session, cultural and scientific enrichment activities, and recreational activities.