I didn't need to spend a lot of time over there to learn most of what I know. I don't really get along with the TIL community too well.
Pretty much this and what Lady Nerevar said. Also, you can learn most of your stuff here, you just need to read lore topics, how they apply, common myth themes, ask questions when things seem too weird or confusing, and blah.
If you haven't done so already, read this thread to help give yourself some foundation http://www.gamesas.com/index.php?/topic/15282-elder-scrolls-lore-faq/ . Oh, and you need to pay me $10.