Web pages

GUI widget

I visited this web site : http://en.wikipedia.org/wiki/GUI_widget

this web site provides information related to Gui widget and all its components

I visited this web site : http://en.wikipedia.org/wiki/Videoconferencing

this web site provides information related to videoconference , this page also provide a general history of the development of videoconference . Also all the technology that its involved

I visited this web site :http://www.pcmag.com/encyclopedia_term/0,2542,t=Twitter&i=57880,00.asp

this web site provides information related to a twitter definition , also it gives many useful tools to look for information .