So I recently found a AoS forum by the name of The Grand Alliance. It's fairly big and is very active, it has everything from a beautiful gallery, friendly community, rumor mongers, personal blogs, tactics for all the factions and even @Crowsfoot . So if there are any people that play or is interested in AoS, I think you should check it out.
It is a very good AOS forum and I do frequent it a bit Make sure you check out this, http://www.tga.community/blogs/entry/424-hinterlands-skirmish-campaigns-in-the-mortal-realms/
I am a bit active there. It was the first Warhammer forum that I joined because its target audience are players of all factions and armies. ...but then I noticed hardly anyone there was talking about Seraphon at all and some friendly member pointed me to Lustria. So now I am here.