It's hard to give an accurate number for the average number of online authors because the number of online authors is constantly changing. Online literature was a huge industry that involved millions of authors and millions of readers. This number would change over time. However, generally speaking, the average number of authors in online literature might be between 1 million and 2 million. This number included all the people who were engaged in online literature writing, whether they were full-time or part-time, whether they were individual writers or team members. Online literature was a huge industry that involved many different fields such as games, movies, and animations. Although the number of authors is huge, this number is also increasing as more and more people start to join the industry.