One of the most exciting parts of the Pokemon Black and White games is the Pokemon Global Link, a system that would allow people to link their games to a Pokemon Trainer Club account so they could enter the Pokemon Dream World and see how they stack up against other players at the Global Battle Union. Unfortunately, the Pokemon Global Link isn’t up yet, and there’s a good chance it won’t be up for a while. The service has been delayed.
Initially, Pokemon Black and White‘s Global Link was going to start up on March 30, 2011. People rejoiced and probably started level grinding to prepare for Nintendo Wi-Fi Connection tournaments to got a pokemon ready to send to dreamland to unlock new pokemon and traders in their games. This was before the March 11, 2011 Tohoku earthquake and tsunami happened in Japan, near Sendai. As a result, Japan has been conserving power, especially with the problems that were happening at the power plants. In response, Nintendo has issued an indefinite Spring 2011 release window for the site.
In the meantime, you may as well visit the Pokemon Global Link website and create your Pokemon Trainer Club account while you wait. You can customize your trainer avatar, get email updates letting you know all the latest Pokemon news and start getting Trainer Tokens for visiting and playing around at Pokemon.com so you can customize your avatar.