microblog; microblogging; microblogging service
Wasei-eigo from 'mini blog', used for short-form blogging platforms like Twitter. Common in tech contexts.
wasei-eigo (Japanese-coined English), from mini blog
I post short updates about daily events on a microblog.
新しいミニブログサービスが若者の間で人気だ。
The new microblogging service is popular among young people.