LIVaC is a tool for linguistic researchers. It is based on a large corpus of over 6 billion characters that shows the continuing evolution of the Chinese language over time and across Chinese speaking communities. 
LIVaC has been in continuous operation since 1995. LIVAC is a unique synchronous Chinese corpus providing insights into linguistic developments across the Chinese communities of Beijing, Hong Kong, Macau, Shanghai, Singapore and Taiwan. LIVaC continuously draws and analyzes data from their Chinese printed news media. It enables the monitoring of linguistic and social developments over time.
More information about LiVaC can be found on Wikipedia.   
1. LiVaC New Chinese Buzzword Rosters


What are the NEW Buzzwords in Beijing, Hong Kong, and Taipei in 2020? 

Click the picture to see the New Chinese Buzzword Rosters from 2017-2020.
2020 新詞榜
The Top 5 new words in Pan-Chinese Regions are: 居家令 (Stay-At-Home Order, ju jia ling), 逆行者 (Heroes in harm’s way, ni xing zhe), 港區國安法 (National Security Law, gang qu guo an fa), 直播帶貨 (Livestream Sales, zhi bo dai huo), 
雲會議 (Cloud-based Conference Call, yun hui yi)
Press release issued by City University of Hong Kong: New Chinese Buzzwords for 2020 released by LIVAC Pan-Chinese linguistic database
2. LiVaC Rosters of Newsmaker
Who are the Top Newsmakers, or KOLs (Key Opinion Leaders) in Beijing, Hong Kong, and Taipei? 
Click the picture to see the Newsmaker Rosters from 2015-2020. 
2020 LIVAC Newsmaker Roster Banner
Press release issued by City University of Hong Kong: Pan-Chinese top newsmaker of 2020