Topic summary
Web manga

Extracted from the Wikipedia article Manga.
Web manga
In recent years, there has been a rise in manga released digitally. Web manga, as it is known in Japan, has seen an increase thanks in part to image hosting websites where anyone can upload pages from their works for free. Although released digitally, almost all web manga sticks to the conventional black-and-white format despite some never getting physical publication. Pixiv is the most popular site where amateur and professional work gets published on the site. It has grown to be the most visited site for artwork in Japan. Twitter has also become a popular place for web manga, with many artists releasing pages weekly on their accounts in the hope of their work getting picked up or published professionally. One of the best examples of an amateur work becoming professional is One-Punch Man, which was released online and later received a professional remake released digitally and an anime adaptation soon thereafter.