These are the sites that provide a ton of info and help for the game:

 

The official Ragnarok Online the MMORPG site.

 

An online map for the RO world.

 

A guide to the Eden Group.

 

An online trading site that keeps track of how many users are on RO.

 

IRO Wiki, easily the most helpful RO site out there.

 

A Ragnarok Online site that's been around since Chaos and Loki.

 

The official Ragnarok Online board on Gamefaqs.com

 

On one last note, when beginning RO, make sure to keep in mind where you are spending your status points and skill points when choosing a class.