sites : widget, twitter & videoconferencing

Videoconferencing

I visited this link http://en.wikipedia.org/wiki/Videoconferencing , where says that a videoconferencing is an interactive telecommunication technologies that allow us to interact with two or more locations, It also knowing as visual collaboration.

Widget

http://whatis.techtarget.com/definition/0,,sid9_gci213364,00.html

The term was introduces in order to refer an object, such as mechanical nature and which doesn’t have a name , also when we cant remember the link of a specific page we can use a widget , which in computers terms, is an element of a graphical user face that displays information of an operating system.

Twitter

http://en.wikipedia.org/wiki/Twitter

according to t his page , a twitter is a free social networking and micro-blogging service that allows its users it send and read others users updates