In your own space, post a rec for fannish spaces and resources - comms, challenges, twitters, tumblrs, etc. Tell us about where you hang out. Leave a comment in this post saying you did it. Include a link to your post if you feel comfortable doing so.
I'm starting to get frustrated at not having good answers for these. Might have to make this my last Snowflake Challenge.
I was only active at The Round Stable (formerly Ponygoons) for a very short time, long ago, but if I ever had the time for it and desired to get deeper into pony fandom, that's probably where I'd go. Ponies are all over the web but they seem to have the same view of the show that I do (it's emphatically for children but that doesn't mean we can't enjoy it like adults), and that's rare.
I'll also take recommendations for active communities in any of my fandoms!