Sources
Honestly, I don't know why it bugs me when people put stuff on their sites with no indication of where things come from but it does.
As much as possible I draw from my own notes from playthroughs, reading the manga, and watching the anime. Obviously, due to how facts work this may overlap with stuff already online but I like to confirm!
On that note, all the screenshots on this site were taken by me unless otherwise stated. You're welcome to use them however you like, no link back is necessary (but it is nice!) -- please host them on your own server though instead of direct links. Again, just due to how screenshots work they might look like ones from other places but I did all my own research.
Unlike screenshots I was unable to rip my own sprites. Where I had permission I rehosted them with credits -- if I didn't have permission I've just posted a link. Playing P3 on a console just means I didn't have the means to do a rip myself!
Finally, for the quick facts I referenced a screencap from the Persona 3 Official Design Works book since I couldn't find a copy of my own! Here's an Imgur Link that I used.