There is the lore section on the main website, generally hunting the forums will give you some good results too, and assuming Eric is not too busy, he loves to email lore information, so you could also ask be emailing feedback@musegames.com
The more specific your questions the better, also email josie@musegames.com she should be able to help with some stuff, but Eric will spot the feedback email (Hint: Add the keyword lore into the title to ensure the feedback email gets forwarded to him.)
You're free to say I said to bother them about it too if you want.