Comment by nspiegelberg

I am currently working on the HBase project at Facebook. It's extremely fun! We try to sync up with the OS branch on a weekly basis. Additionally, FB actually has an Open Source team whose primary job is to find out how we can use current open source solutions or remove company-confidential material and open source more of our infrastructure. It gives you real pride to know that your company completely supports your desire to help the software developer community.