If you are organizing a #PlanetaryScience meeting, there is no reason to pay for a service to manage abstract submissions, registrations, and program management. We are offering the use of our Indico server to the planetary science community for free.

https://solarsystem.events

#Indico can help you organize and advertise any event, from individual seminars to large conferences. It even allows for collecting payments. If your organization would like an account, please contact us!