Event Espresso 4 Core for WordPress: Build an Event Ticketing Website
Bridge plugin for adding Name Your Price support
Open Source Ticket Selling & Event Management Platform
Build and make a full ticketing support system
Event notification tool
Javascript Lib jMenu
Event tickets for SilverStripe and Event Calendar
Fuzzy string matching in Python
Editable and Printable Organizers Event Tickets
Registration, charge capture, and cashiering application
Lead Management System for Marketing Companies
Event Management and Ticket Processing Software