This year, Review Board has been accepted as a mentoring organization in Google's Summer of Code. This will give students an opportunity to contribute to Review Board and to get paid to do so, and it should result in some awesome features added in the next version of Review Board.
We've also decided to continue offering Review Board hosting for projects participating in Summer of Code, even ones that aren't related to Review Board. This can help mentors to review students' code, keep track of what was done, and to introduce students to good code review practices.
If you have project proposals or questions, you can reach us privately or on our firstname.lastname@example.org mailing list.