Guides and news: http://dulfy.net/category/bdo/
World bosses, wild horses, leveling, nodes, other locations: http://www.somethinglovely.net/bdo/
Database: http://bddatabase.net/us/
Costumes: http://bdo.mmo-fashion.com/
/bdog/ guilds: https://pastebin.com/8JxEc2Pa
NA Boss Discord: https://discord.gg/bdo
EU Boss Discord: https://discord.gg/MnruptX
About other BDO versions: http://pastebin.com/8ig2MSHY

FAQ - Olvia servers:
The Olvia servers are special servers that provide 200% EXP for new and returning players on characters over level 30. To enter these servers you must have a new account (Made on or after Dec. 1st with the Opening of the New World!) or have been absent from the game for 30 days.  Players who meet these requirements will be able to login to these servers.  Please note there are a few key points about these new servers.

Olvia Servers do not have world bosses

Olvia Servers do not have horse races

Olvia Servers do not participate in sieges or node wars

Olvia Servers do not participate in the Red Battlefield

After 30 days you will not be able to access the Olvia servers.

The Bonus EXP from the Olvia Servers will not stack with other EXP Bonus Events.