The communities on Google + are pretty well set as far as historical wargaming go as well as miniature gaming. However the PC wargaming area seem relegated to a few individuals posting things and it was hard to round up information in one spot (and no the shit that is World of Tanks, RTS games or first person shooters is not what I am talking about)
I created a PC / Digital Wargaming community just for electronic wargaming. The other types (miniature and board wargaming) are best left to others.
The link is above ^