We get notified of hundreds of helicopter-friendly events. at Helipaddy The Events Calendar displays them all on a simple calendar view.
Clicking on a particular day shows all the events of that day and then clicking on the event details gives you the list for the day. From there you can quickly find the link to the landing instructions.
If you have an event you want to publicise, please view the form on the events page at helipaddy.com/events.