Padlet - Visual boards for organizing anything.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Snapchat - Real-time picture chatting
Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.
X (Twitter) - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.
Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.