The Valar Guild is the Second Oldest LotRO Kinship. It was formed the day after the first kinship was formed, way back in Beta days. This kinship is a Lore-Specific, RP kinship. Every Sunday afternoon, they have an in-depth discussion on some aspect of the books. If you are interested in finding more about the Valar Guild and in joining their discussions (you need not be a member of the Valar Guild to participate. Guests are welcome. Be polite), below is the link to the Valar Guild Website.
http://valarguild.org/