The Calendar module is a great way of showing future events in calendar format.
This is especially suited to organisations which have a small number of regular events with maybe different speakers or venues.
The website shows a calendar, with one month at a time viewable. In this calendar each event is click-able to a new page with that event details. The homepage can include a summary of the next few events with direct links through to these.
This allows new events to be added with name, description, date and time. The events include Venue and Contact details. Existing events can be edited or deleted.