I am sorry to hear you didn't get the job. Did FB give you any concrete feedback as to why they passed? There may be several factors at play here. Was it your salary requirements? How was your interactions with the group during your onsite? etc..
I am sure Facebook is looking to diversify their workforce so be more objective and look pass race (I know it is hard but try) for concrete answers as to why you didn't get the job.
Salary req'd were not discussed on interview. Recruiter said salary expectation was within the position.
I don't know how to be more objective than listing actual requirements for the position and see if they got what they say they wanted. In this case, they sure didn't and I don't know why.
I didn't screw up the interview for sure. I prepared quite a bit.
I am sure FB is trying to diversify too... but I hope someone replies here saying how is this happening.