Arelith has a wealth of resources available, you just need to know where to look. Here is a good start!

Official Resources

The Server Portal gets data directly from the servers, letting you know at a glance when each server is up, down or somewhere in between, and who is online. Future features are planned and mostly half-finished.

Arelith Wiki is an editable-by-anyone wiki that contains a huge amount of useful, spoiler-free information. Probably the best reference available, it explains just about everything in (sometimes excruciating) detail.

Arelith Chat is the IRC channel frequented by several players and DMs. Check here to socialize, ask and answer questions, and get help.

Unofficial Resources

Encyclopedia Arelithica is an ambitious attempt to chronicle the notable and not-so-notable events and characters that make up the rich history of Arelith. Editable by everyone, though changes undergo moderation. Encyclopedia Arelithica is different from Arelith Wiki in that it focuses not on the present state of Arelith but its history. Not on mechanics but characters.

Arelith Radio is a player-run radio station that you can listen to while someone is broadcasting. The DJ of the day is usually on Arelith Chat while streaming audio, some DJs will take requests.

Tools

The log filter allows you to take the logs that NWN spits out and compress them down to a more concise and, importantly, readable form. It is recommended that you run any logs you intend to send to a DM through this tool first. See also: information on how to enable logs.

In case you ever need to refer to a portrait, for example when requesting a portrait change for your character, this page may be helpful - it is a complete list of the standard portraits in NWN, listed along with their names which you can use to refer to them. Much less ambiguous than "that one with the red hair holding a dagger"!