Hello, Honey-sempai: Well, there are some options I can think of from the top of my head. In English I'm not so sure I would just recommend a blog site like blogger.com. There is a great site in Japanese called syosetu.com which is where many great anime got their start such as DanMachi. Also,another option in English is Wordpress. Amazon publishing, directly publishing to a market space is an option. Wikispaces is an option if you want a wiki format if you want to make deep searchable content. Otaku-streamers main site still has a blogging feature which you could use (request destop site from your browser menu). There's more that I can't think of atm. But I'm interested in reading a light novel from the community. You could even make a thread here in the forum. Best of luck!