| Birth Date: | December 5, 1961 |
| Birth Place: | Hyōgo Prefecture, Japan |
| Education: | Waseda University |
| Occupation: | Journalist |
is a Japanese freelance journalist and critic, a regular writer for CNET Japan, and a one-time reporter for Mainichi Shimbun. He was born in Hyōgo Prefecture.
After graduating from Okazaki high-school in Aichi Prefecture, Sasaki entered the Faculty of Political Science and Economics at Waseda University, but dropped out and in 1988 joined Mainichi Shimbun, where he was in charge of the criminal investigations division and reserve reporters, covering issues such as murder cases, international terror and computer crime.
In October 1999, he transferred to work for the magazine . He quit in February 2003 after serving in the editorial department of, and is currently a freelance journalist.
Sasaki has a great interest in Internet media that emerged at the beginning of the 21st century,[1] and since he became a freelancer this has been at the center of his work. He has studied the so-called "Net Right-wing" in Japan a great deal, and has contributed many articles to publications such as Sankei Shimbun, and . He has also written many books, most recently (2008) and (2007). He has also written extensively about the WaiWai scandal at the Mainichi Shimbun.[2] He also covered Anti-Japaneseism which Sasaki called a "violent ideology" and self-contradictory.[3]