Realm War is an interesting feature evolved from Mythic Entertainment's debut MMORPG, Dark Age of Camelot. Realm War allows players to look up players, guilds, and check out leaderboards. Up until now its been a pretty useful feature, but if you wanted to know about the status of a servers battlefields you'd need to use the Battlefield Map on a site like WARDB.com.
In an update to the herald today, Scott Stricklin, Web Development Lead at Mythic Entertainment details the new changes to the Realm War feature. Its got a really snazzy facelift, you can now look up the status of the RvR campaign on your server, including being able to see which guild owns a keep, and when something was last captured. Neat!