Welcome newcomer to a place always in expansion of community and of various forms of discussions and entertainment. Plenty of people here love Naruto and FMA so you shouldn't feel alone in this vast new community you have just joined. I myself loved FMA the anime, but only appreciated the manga version of Naruto...the anime felt bland in comparison. I haven't played football often though and we can't really play much on AO, though talking about it shouldn't be any problem if you know where to post your thoughts. Be sure to check out the rules, they may be many, but most of them are common sense or there to help you find your way accross the boards.
You'll find a huge set of things to check besides the forum:
Your own little blogging spot, a homepage like thingy where you can put almost anything including video from youtube and the likes and much much more.
Well then, that's all for me, have fun, Take Care and Till Next We Meet....