Hatena

Hatena is a Japanese technology company that provides a variety of web services, including a popular blog platform and bookmarking service. One of their advertising products is "Hatena Blog Ad," which allows businesses to place ads on blogs hosted on their platform. Hatena also offers targeted advertising options through their "Hatena Bookmark" service, which allows users to save and share links. While Hatena`s advertising products may not be as well-known globally as some other platforms, they are popular in Japan and offer businesses a way to reach a specific audience.

Website: https://www.hatena.ne.jp/