The company moved its headquarters to Shibuya, Tokyo on April 10, 2004.

Hatena Diary was a multi-lingual service which supported UTF-8 character encoding.

The chief characteristic of Hatena Diary was its keyword system.

[citation needed] The user can save a specific URL as a bookmark and tag it.

They are able to interact with the other users through the tags, and can leave comments of up to 100 double-byte characters in length.

An "Add to Hatena Bookmark" button is integrated into a lot of famous news sites, such as asahi.com, CNET Japan, ZDNet Japan, Nikkei ITpro, and ITmedia.

Once used, it would post a small embedded map with the user's current geographical location marked on it, as well as their local surroundings.