Canon Tethered shooting from Windows

Cute Canon Capture is an open source and free program to control your Canon camera using a USB cable.

I haven't tried it personally, but I can see it being extremely useful in certain situations, especially studio product photography.

Cute Canon Capture runs on Windows only (sad) and works on the following Canon camera models:

• PowerShot A620
• PowerShot S80
• PowerShot S3 IS
• PowerShot G7
• PowerShot A640
• PowerShot S5 IS
• PowerShot G9
• PowerShot SX100 IS
• PowerShot G10
• PowerShot SX110 IS

Long Distance Camera Trigger

Here's a simple DIY project on how to turn a pair of walkie talkies into a long distance camera trigger, especially for photographing wildlife.

LifeHacker article

flickr page with do-it-yourself instructions.