In 2000--2009 years
It was popular for a decade, Jay and brightest era of King Fish Leong SHE Angela Eason Chan performances, in addition to many, many, it was a rare era of diverse pop culture;
2009: 3G
Keywords: QQ MP3 Internet non-mainstream pop music
Year 2010 - 2019
This is the decade of traffic, all things are traffic, after Jay era;
2014: 4G
Keywords: micro-channel mobile Internet deft vibrato + / payment Wolf
20 years, from PC to mobile; payments from cash to a mobile; from a local server to the cloud server;