Hatena (company)
 Hatena Co. Ltd. (株式会社はてな Kabushiki-gaisha hatena) is an internet services company in Japan. It operates various services including the most popular social bookmarking service in Japan Hatena Bookmark. Hatena is the collective name of the company's services. On July 19 2001 it was founded by Junya Kondo in Kyoto. The company moved its headquarters to Shibuya Tokyo on April 10 2004. The headquarters were moved back to Kyoto in April 2008.