Thread:Semanticdrifter/@comment-3474513-20131022100316/@comment-4811793-20131022163326

That is great advice. To focus specifically on the fair use aspect of the question, you can add as much information ABOUT an anime or manga as you like, and fair use doesn't enter into it. As long as you are discussing the content without recreating it, then there likely isn't any copyright issue.

If you are reproducing the material somehow, then fair use might come up. Unfortunately, there isn't a hard and fast rule about how much material is too much. I wrote a blog that can point to some of the things you should consider.

One useful thing to consider is if people could use the wikia as a substitute for buying the content. Are you providing video of entire episodes or copy/pasting the entire work? Both of those are likely to be way too far to qualify for fair use.