This is a link to the board of the Music Publisher's Association:
http://mpaonline.org.uk/About/MPA_Staff ... shers.html
The quickest way to influence the actions of the MPA officials is by targeting the Board members with an e-mail campaign using music social media sites.  The executives and companies on the Board will not appreciate having their names associated with internet censorship and being made to look foolish, which is exactly how they look now.  Remember, the issue is about the heavy handed behavior and not whether Pachminonov is or is not public domain.  By taking down the entire website they infringed on music lover's rights to enjoy public domain sheet music for no good reason.
MPA Board
MPA Board classical publishers
Chris Butler	Music Sales Ltd
Leslie East	ABRSM (Publishing) Ltd
Sally Groves	Schott Music Ltd
Richard King	Faber Music Ltd
John Minch	Boosey & Hawkes Music Publishers Ltd
Ben Newing	Universal Edition (London) Ltd
Shirley Ranger	United Music Publishers Ltd
Nicholas Riddle	Peters Edition Ltd
MPA Board pop publishers
Mark Anders	Bug Music Ltd
Peter Barnes	Pink Floyd Music Publishers Ltd
Paul Connolly	Universal Music Publishing International Ltd
Peter Cornish	Fairwood Music Ltd
Jane Dyball	Warner/Chappell Music Ltd
Crispin Evans	Cote Basque Music Publishing Ltd
James Fitzherbert-Brockholes Kobalt Music Group Ltd
Nigel Elderton	peermusic (UK) Ltd
Andy Heath	4AD Music Ltd
Stuart Hornall	Hornall Brothers Music Ltd
David Kassner	Kassner Associated Publishers Ltd
Andrew King	Mute Song Ltd
Paulette Long	Westbury Music Ltd
Guy Morris	Blue Mountain Music Ltd
Simon Platz	Bucks Music Group Ltd
Rak Sanghvi	Sony/ATV Music Publishing UK Ltd