Providing on-line non-downloadable software for event and meeting management, namely, software for creating spatial diagrams of event and meeting rooms and spaces; Providing on-line non-downloadable software for users to plan and edit floor plans for events and meetings; Providing on-line non-downloadable software for creating and editing seating charts; Providing on-line non-downloadable software for sharing guest lists and seating charts with guests of an event and meeting; Providing on-lin...