From time to time, conferences focusing on Plone are arranged. Here are some of the past ones, as well as upcoming events.
Naples 2007

The fifth Plone Conference, held Oct 8th-12th, 2007 in Naples, Italy.

OLD (pre-2009) Conference Proposal Guidelines

Choosing a venue for a Plone Conference is a community process that involves soliciting proposals. This document provides guidelines for what should be in a proposal for hosting a Plone Conference.