Bruce Momjian <bruce(at)momjian(dot)us>, Ranier Vilela <ranier(dot)vf(at)gmail(dot)com>, Christoph Berg <myon(at)debian(dot)org>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, Felix Lechner <felix(dot)lechner(at)lease-up(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Personally I'm more interested in a library like Amazon's which is trying to do less rather than more. I would rather a simpler, better tested, easier to audit code-base than one with more features and more complications.