Since I started watching MLP I've noticed bronies in the strangest places. A few dropped hits and suddenly complete strangers turn in to new friends. Such is the power of the brohoof and that's the intent of this group. We all know friendship is magic, so why not bring a little of that magic to the kos?
If you're new to the phenomena or simply brony-curious, I would highly recommend jumping right in and watching a few episodes. They can be found on youtube, iTunes, or Netflix.
If you're the sort that would rather know what you're getting in to:
My Little Pony: Friendship is Magic follows the adventures of Twilight Sparkle, a dutiful student of magic and prodigy of Princess Celestia, the ruler of fictional Equestria.
Princess Celestia has decided that Twilight needs to experience the world outside of her textbooks and her relatively isolated life in Canterlot, by sending her to Ponyville with a mission to learn about the magic of friendship. While in Ponyville, Twilight meets five other ponies who's personality traits match those of powerful magic items called the Elements of Harmony.
The Elements of Harmony are used twice in the series, with the bulk of episodes focusing on the interactions between the various ponies with light adventure story telling and some truly excellent music.
The Brony community is a bit more difficult to explain, and the following link probably sums it up best:
http://knowyourmeme.com/...
One of the things I enjoy most about the community is the number of amazingly creative and talented individuals who have contributed amazing works of art and wonderful music to the community, all themed and often containing samples of dialog and music from the series itself.
Some of my personal favorites are:
SimGretina's So Many Wonders
PinkiePieSwear's Sunshine and Celery Stalks
Of course, the best place on the web for pony related everything is probably Equestria Daily
That being said, welcome everypony!