Read this article from Mari Smith.

“Whether you attend events via Facebook and/or you host your own, this post and video may be of interest to you. I really think there is a fine art to using the Facebook Events feature effectively.

When setting up the event, as an organizer, I highly recommend you leave all the default settings the way they are – that is, allow guests to invite others, upload photos, write on the wall, etc. The reason being is every one of these activities creates news items that go out into the feeds of those individuals and of their friends. This is great viral visibility for you and for them.”