9 computer software, namely, plugins and computer software development tools for providing on-line event registration, management, navigation, scheduling, calendaring, ticketing, payment and feedback services, to event organizers and event attendees at conferences, conventions, meetings, alumni reunions, trade shows, workshops, classes, social events and mixers; e-commerce software to allow users to perform electronic business transactions via a global computer network; application programming interface (API) software for event registration, management, navigation, scheduling, calendaring, ticketing, payment and feedback services