Google's Summer of Code is an opportunity for students to essentially "intern" at an open source project for a summer. Every year, students are given the opportunity to apply to a project and are paid for their time.
Review Board is currently participating as an organization that students can apply to, and by offering hosting for other open source projects.
Hosting Summer of Code Projects
We're also providing hosting for other open source projects that are participating in Summer of Code. If you're a student or an organization interested in using Review Board for student-contributed code, you can request hosting.