I'm not too sure what the rules are with advertising on this community but I figured it was about Monster so it would be acceptable. lol.
There's a new community centralizing around the Johan & Anna Liebert of Monster.
You can either be a fan of them individually, as siblings, or as more than siblings ( hinthint). We love the twincest. ;)
The community is all about the twins so you can submit any kind of fanworks, questions, suggestions, fangirling, it's all accepted! It's brand new so come and take a look/join/spread the word.