The publishing and editorial teams would like to thank the following for their invaluable service as 2021 reviewers for Journal of Internet and Digital Economics. We are very grateful for all the contributions made. It is with their help that the journal has been able to publish such high-quality articles. 

• Hu, Sijia
• Jing, Wenjun
• SUN, ZHEN
• Xiong, Wei
• Yu, Mingzhe
• Zhang, Wentao
• zhou, shuo