Hi, generally we only have Backdash when it comes to relevant sites in our FGC, you don't really need to link to specific regional subforums because they're not very active, just a link to backdash in general would be good. As of regular events right now, we have Bursa in Włocławek and MFKiG in Łódź (they don't have their own sites, but info about them is always posted on backdash).
About streams, the only ones I know are:
http://www.twitch.tv/3ctlive (my stream, located in Gdańsk)
http://www.twitch.tv/TekkenTEJ (stream of the fgc in Poznań, mainly focused on tekken)
Hopefully some other people will provide you with more info.
