I am part of various other communities that are not related to the fandom, but that have their own furs.
CraftedMovie, a small Minecraft Machinima group on YouTube, own a forum that I joined back in May 2012. It's from there that I discovered the furry fandom, I met plenty of other furs and joined a group.
I'm also part of the Ascentia community, a french forum (once again related to Minecraft), and found out from there that one of my IRL school friends is also a furry.
I'm also also a member of the FranceFurs community, a french furry forum. I've joined them a month before joining you guys, but didn't actually do anything on their forums 'till last month when I started becoming active.
These are the 3 other communities I'm part of. But I won't say I moved from one community to an other. Once I joined a community, I stay part of that community. I don't like to come and then leave.