First Global P2P
1999: Napster is introduced
2000: Rapster for Mac
2000: Macster
Reference: http://www.mac-p2p.com/p2p-history/
Reference: http://www.theregister.co.uk/2000/10/25/napster_launches_mac_mp3_app/
Reference: http://news.com.com/2100-1023-247603.html
Reference: http://www.associatedcontent.com/article/20644/a_brief_history_of_filesharing_from.html
Video Conferencing
1991: IBM and PictureTel demonstrate videophone on PC
1995: Apple involvement in Video Conferencing begins
Reference: http://myhome.hanafos.com/~soonjp/vchx.html
Instant Messaging
1996: AOL/ICQ developed
1999: MSN Instant Messenger
Reference: http://en.wikipedia.org/wiki/Comparison_of_instant_messaging_clients
First Portable MP3 Player
1998: Eiger Labs MPMan F10
Reference: http://en.wikipedia.org/wiki/Eiger_Labs_MPMan_F10
First Mass Market Portable MP3 Player
1998: Diamond Rio
2001: Apple iPod
Reference: http://www.ipodobserver.com/story/31394
Reference: http://www.technewsworld.com/story/57376.html
MP3 Players
1996: WinAmp
1997: MacAmp
Reference: http://en.wikipedia.org/wiki/Winamp