I've been a member of an olive oil club for about 3 years now. You pay an annual fee for a set number of bottles and they are delivered approximately every 3 months. They are sourced from all over the world depending on the quality of the harvest in any given year. It's quite a small operation but the quality of the oils I have received is nothing short of eye opening. They also do wonderful balsamics. I don't work for them or have any interest in the company but I can thoroughly recommend them to any food lovers.
http://www.oliveoilclubs.com/index2.html