InProg is an international Progressive rock festival in Moscow, Russia, organised by the Russian InRock music magazine.
You can read wikipedia article about festival in English:
http://en.wikipedia.org/wiki/InProg
Also several articles about festival in Russian at InRock website ( http://www.inrock.ru ):
http://www.inrock.ru/inprog2006.htm
http://www.inrock.ru/inprog2006history.htm
http://www.inrock.ru/inprog2005.htm
http://www.progmusic.ru/rus/modules.php?name=News&file=a
rticle&sid=44 (InProg2004)
http://www.inrock.ru/progfest.htm (InProg2001)
Also overview of Russian progressive rock scene in these 3 articles (forewords to CD compilations):
http://www.salonav.com/arch/2004.04/htm/111-115.htm
http://www.salonav.com/arch/2005.05/CD_mozg2.htm
http://www.salonav.com/arch/2006/04/CD_prog3.htm
Future of festival now is a bit uncertain due to lack of financial backing. However we hope to make it happen, one way or another, around April 2008. With any ideas, contact me at inrock2006 @ gmail.com