If you are looking for an awesome Naruto AU guild you should join Soragakure. Here you will find an alternate Naruto universe made up of various original characters. The character that one creates will be used throughout the various threads throughout. There is a main plot and storyline to the guild, but you can also go to smaller non-storyline threads like the villages, hot springs, and other fun roleplaying areas. The guild also hosts contests and other events to keep everything fun and entertaining. We regularly meet in barton towns, games, guild chats, and other gaia features, but none of this is mandatory, just another fun way of doing something on this site.
(Click the picture and read the instructions on the homepage to join.)