If you need to make a few Skype calls or want to start a Hangout on Google Plus, but don't have the necessary equipment at hand, don't run off to the hardware store just yet! If you have an Android smartphone with camera, you can simply use your phone instead.
http://www.makeuseof.com/tag/how-to-use-an-android-device-as-a-pc-webcam/
* How to Use Your Smartphone as a Webcam for Your Computer * How to Use Your Smartphone as a Webcam for Your Computer * How to Use Your Smartphone as a Webcam for Your Computer * Android client * desktop client