One of the greatest attractions of LOTRO is the opportunity to explore Middle-Earth. Standing Stone Games have done a very good job of interpreting Tolkien's world, offering a rich and diverse environment. I often like to cross reference the in-game environment against such books as Journeys of Frodo by Barbara Strachey and The Atlas of Middle-Earth by Karen Wynn Fonstad. Whenever a new region becomes available, I always like to see what lore based references I can find there. Overall the Middle-earth featured in LOTRO is remarkably faithful to the source text, given the practical compromises regarding scale that have to be made.