Monthly scholarships of ~$1000 are available for U.S. undergraduates to work with researchers at a Swiss university. The scholarships are provided by ThinkSwiss:
an official program of the Swiss Confederation—promoting exchanges and sharing knowledge between the U.S. and Switzerland.
Participants in the program maintain a blog of their experiences.
Application materials, including a letter of invitation from a Swiss researcher, are due by March 31, 2010.