A web camera (or webcam, real camera) is a real-time camera (usually, though not always, a video camera) whose images can be accessed using the World Wide Web, instant messaging, or a PC video calling application.
Web-accessible cameras typically involve a digital camera which uploads images to a web server, either continuously or at regular intervals. This may be achieved by a camera attached to a PC, or by dedicated hardware. Videoconferencing cameras typically take the form of a small camera connected directly to a PC. Analog cameras are also sometimes used (often of the sort used for closed-circuit television), connected to a video capture card and then directly or indirectly to the internet.
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Webcams are frequently used during online chats using Microsoft Messenger, Skype or similar online services
the potential is there for some very powerful multimedia work to be created.
A WebQuest is an activity where the student answers questions / compiles information mostly found on the web. WebQuests are designed to focus on using and analysing information rather than looking for it. This means the teacher / constructor provides the student with the required links.
The best place on the web to learn about WebQuests is: http://webquest.sdsu.edu/webquest.html
The WebQuest model was developed in early 1995 at San Diego State University by Bernie Dodge and Tom March, and was then outlined in Some Thoughts About WebQuests.
The main problems with using the WebQuest method for the less taught languages are the language level of the websites (usually very high) and that for some languages there is still (2003) very little content available on the web.
To create webquests you may use InstantWebquest, which is a web based software for creating WebQuests in a short time: http://instantprojects.org/webquest/main.php
More information: http://webquest.org/ and http://bestwebquests.com/,which gives an excellent introduction to WebQuests and which contains a large archive of ready to use materials,