"Oh come on, don't tell me you actually believe that crap. Those old forum fairytales!"
— Bordeaux —

BBS is short for a Bulletin Board System. In the American version of .hack, it is often just called "The Board". It is an internet forum where users can exchange information or discuss topics of interest. Users of The World use its official BBS to give and receive gameplay help, discuss current events, or arrange a time and place to meet. Other forums unaffiliated with CC Corp exist as well, and usually have more lenient rules about content.