Hatena Co., Ltd. (株式会社はてな) is an internet services company in Japan. It operates various services including the most popular social bookmarking service in Japan,[1] Hatena Bookmark. Hatena is the collective name of the company's services. It was founded by Junya Kondo in Kyoto on July 19, 2001. The company moved its headquarters to Shibuya, Tokyo on April 10, 2004. The headquarters were moved back to Kyoto in April, 2008.[2]
Hatena Diary and Hatena Blog
Hatena Diary was Hatena's blog hosting service. On January 16, 2003, it was released as a beta version. On March 13, 2003, it was taken out of beta. Hatena Diary was a multi-lingual service which supported UTF-8 character encoding. Hatena Diary has a free version and a premium version. The chief characteristic of Hatena Diary was its keyword system. It was replaced on July 26, 2019 by Hatena Blog.