Ex Ordo - The Support team at Ex Ordo can build your book of abstracts or papers (for an additional cost) through a semi automated process. Essentially, you choose your p

Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.

PopBookings - Download PopBookings apk 3.2.0 for Android. PopBookings app allows users to connect with their promo agencies on the go.

Eventbrite - Discover Great Events or Create Your Own & Sell Tickets

Guestboard - Lead powerfully-organized group events with Guestboard – a modular event platform that gives groups of 10-1000+ people a central space to coordinate, build excitement, and save money. No more crazy email threads. No more massive group texts.

Bigtent - BigTent is a web-based organization and communication portal for groups.