http://www.portaledicomo.it/2013/mag-como-luigi-russolo-larte-dei-rumori/Exhibition in my hometown, 5 mins walk from my place, featuring an original copy of the manifesto.
Futurism was not fascist itself, but set the language style and many forms that made fascism what it became.
Most big names of futurism dealt with fascists: Marinetti, Balla, Depero, Crali, Tato, Forlin, Thayaht, etc. not to mention the architects that formed the so-called rationalist architecture school that was strongly inspired by interventionist Sant'Elia. Terragni, Lingeri (my house was built by him in the 20's and you can see the style made by arches, very high ceilings, etc) , etc all were part of fascism, I cannot say if by faith (like Marinetti), convenience or survival (whatever you may think about the subject, fascism and communism were not a joke and you either fit or you did not).
Russolo was indeed not fascist and with Depero is my fave of the lot.
I am VERY interested/influenced by futurism, possibly my favourite vanguard ever. Marinetti's Mafarka is the quintessence of what I want/like to read.
I love the way they distanced themselves from other artists by actually putting their thoughts into action.
make sure you check this nice hommage of this graphic designer:
http://www.dinamorivoluzione.com/2010/10/poster-dinamo-futurista-e-guido-keller-disponibili/I have a couple of them in my house