“Each summer the Berkman Center for Internet & Society at Harvard University swings open the doors of our vibrant yellow house to welcome a group of talented and curious students as full-time interns – Berkterns! – who are passionate about the promise of the Internet.”
The application deadline for summer 2016 is Friday, February 12, 2016.
Source: https://cyber.law.harvard.edu/getinvolved/internships_summer