Recently a friend sent me a link to a website that shows all the airline traffic from around the whole world, including our airways around New Zealand, that I thought was pretty amazing.
The site is www.flightradar24.com
Have a look at it by clicking on the link. It shows all the airliners that are in the air at that time across the world (at the top of the box on the left of the screen). This number varies but is in the region of five or six thousand planes! You can drag the screen to whatever area you are interested in then you can zoom in or out by scrolling with your mouse.
On the map you will see all the aircraft in the air at that time. When you click on an aircraft, on the left screen you will get all the Information related to; airline, actual aircraft, a photo of that actual aircraft (that you can click on to enlarge), plus air speed, altitude and coordinates in real time that is re-calculated every 10 seconds. On some you can also click on view from the cockpit.
I have also seen some local light aircraft that show up as a different shape on the screen, and an RNZAF King Air.
At lunchtime today I was watching the airliners coming into Auckland on the website - it is an interesting time because 3 Emirates Airbus A 380s arrive in short order from Melbourne, Sydney and Brisbane. Today the aircraft are A6-EDN from Melbourne (arrived at 12.34) , A6-EEG from Sydney (arrived 12.46), and A6-EEL from Brisbane (arrived 12 53pm).