They have also become a source of security and privacy issues, as some built-in webcams can be remotely activated by spyware.

The most popular use of webcams is the establishment of video links, permitting computers to act as videophones or videoconference stations.

Webcams have been used for augmented reality experiences online.

One such function has the webcam act as a "magic mirror" to allow an online shopper to view a virtual item on themselves.

For a more complete list see Comparison of webcam software.

Special software can use the video stream from a webcam to assist or enhance a user's control of applications and games.

Unauthorized access of webcams can present significant privacy issues (see "Privacy" section below).

In December 2011, Russia announced that 290,000 Webcams would be installed in 90,000 polling stations to monitor the Russian presidential election, 2012.A webcam is a video camera that feeds or streams its image in real time to or through a computer to a computer network.When "captured" by the computer, the video stream may be saved, viewed or sent on to other networks via systems such as the internet, and emailed as an attachment.making them the lowest-cost form of videotelephony.Despite the low cost, the resolution offered at present (2015) is rather impressive, with low-end webcams offering resolutions of 320×240, medium webcams offering 640×480 resolution, and high-end webcams offering 1280×720 (aka 720p) or even 1920×1080 (aka 1080p) resolution.Watch for activities such as sitting up, grooming, making the bed and even some light play between the two bears – all this activity keeps their muscles and bones healthy during the long winter months.