The LittleBigPlanet Wiki is a Fandom wiki that serves as a general encyclopedia about the LBP series that anyone can contribute to. It is, presumably, the oldest and longest running wiki about the franchise.
Since the site is hosted on Fandom.com, there are a lot of ads. However, if you are willing to stick through the ads, it’s currently the largest resource of information about LittleBigPlanet with over a thousand pages. The wiki also has an active community with Fandom.com discussions taking place every day.