(Est. 2003) “Skype is an instant messaging app that provides online text message and video chat services. Users may transmit both text and video messages and may exchange digital documents such as images, text, and video. Skype allows video conference calls. On 10 May 2011, Microsoft Corporation acquired Skype Communications, S.à r.l for US$8.5 billion.
The company was incorporated as a division of Microsoft, which acquired all its technologies with the purchase. The acquisition was completed on 13 October 2011.” (Wikipedia)