Earlier this week, I wrote about organizing low-key meetups with your community members at conferences and events. This approach is limited, though, because if you are not sponsoring an event, you should really only engage in behaviors that do not compete with the conference and its sponsors, otherwise you risk breaching conference policies or ethical standards.
By sponsoring an event, you open yourself up to a bigger world of opportunities. You are simply allowed to do much more. Each event will vary, but sponsorship has its perks. In how you can interact with attendees, how you can promote your community and how much the conference organizers can help you.