I signed up today at AKB web FC, so I'll be reading their (well, her) blogs from now on.
^ http://www.akb48-lyrics-paradise.co.nr/
sounds like a good idea, but they charge pretty steep fees
other benefits like a one time guarantee stage ticket (fan saves this for special event like favorite member's birthday, graduation, etc.). FC members have advantage of special event draws but basically if you don't live in Japan, these benefits don't apply to you but I think the blog and photos are attractive enough to join.