Hey there, Some plugins (I am affected myself) need to have access to player names and their UUIDs 24/7 and not only when the player in question is online. Example: A plugin that allows to look up who changed block X the last time. If I check a block I would like to be presented a player name and not an UUID. Therefore the plugin has to either (1) look up the player name every time at Mojang's servers (No!) or (2) cache the players name. The player is offline in this case. As there are quite a lot plugins that would need to have access to offline player names I think it would make sense to have one central instance that does the caching and allows lookups. Instead of each plugin having its own list of cached usernames. What do you think? It would be great if Bukkit could do that, but I am not sure if they would accept it as "their business". Even though I bet a lot of plugins would make use of it.