Complex sentence: Today, the platform is mainly used by educators and students and has grown into a worldwide community of over 19 million users, who have created over 25 million educational glogs, out of 45 million total glogs on the service.
Split into simpler sentences: Today, the platform is mainly used by educators and students. It has grown into a worldwide community of over 19 million users, who have created over 25 million educational glogs, out of 45 million total glogs on the service.