You can find me on:
You can see the planes flying above my house below. The data is collected directly from aircraft with a 1090MHz ADS-B reciever on my roof and referenced by this webpage which is hosted on a raspberry pi. The data also feeds FlightRadar24. The page isn't very mobile-friendly so if you're on mobile go here.
Here you'll find some nice project write-ups:
Cargo Bike
IR Translator
Hill Climb lights
Brompton lights