Bluetooth

Bluetooth is a wireless protocol for exchanging data over short distances from fixed and mobile devices, creating personal area networks from- wikipedia-

An innovation in technology. It makes transferring of photos, music, etc; much easier. I'm more familiar with bluetooth in cellphones. Through this you can share pictures with your friends without consuming load from your mobile phone provided that distance is within its capability.
If you have a desktop or laptop, bluetooth device and a cp with bluetooth is a convenient way to upload pictures to your social network account. Most computer shop has this device for the customers who wants to upload and print pictures. What surprises me is that some people who own a cellphone with this application doesn't know how to use it. They don't know how to send pictures using this application but gladly when you teach them they could easily follow. This is because its so easy just like learning the ABC.LOL!

I know there are other means of transferring pictures from your mobile phone. Like a memory card together with memory card reader; cp with usb port paired with usb cable; and cp with infrared.