All of these three letter P W L is good letter.

PWL Password List (Windows System File Extension .pwl)
PWL Petroleum and Water Logistics
PWL Piece-Wise Linear

And .pw is also a ccTLD of Palau.

Price is only $50 via paypal.
This price is lower than Pool and snapnames.
Post SOLD to claim.Name post at many forum,will check time stamp to decide the winner.
Thanks
Bean

SOLD at DNF.Thanks.
Bean