Pokémon Black and White/Pokémon Global Link

The Pokemon Global Link is where you can access the Dream World, change some Pokemon White/Black game settings, and access the Global Battle Union.

=Dream World= When you have a Pokemon sleeping in a PGL-Synched game, you can access the Dream World.
 * See the Dream World page for more information.

=Campaign= This option lets you obtain limited-time new Pokemon, C-Gear Skins, Pokedex Skins, and Musical songs.
 * All Campaigns are available for only a set time. After it's over, it can not be obtained, same as Mystery Gift Events.
 * Some Campaigns do re-occur, but this is rare, and has thus far only occurred for Japan.
 * Some Campaigns are password-locked, some are not. Some Passwords are constant, the same for everybody; Often these can be found on sites such as Serebii.net. However, others are one-time usage codes, usually a unique serial code given out with a Pokemon-related product.
 * Some Campaigns have other triggers to become available, such as an event in the Dream World.
 * Not ALL Skins/Songs are unlocked via Campaign. Most are though.

=Customize (B/W Game Settings)= Once you've obtained a C-Gear Skin, Pokedex Skin, or Pokemon Musical song, it becomes available as a game setting here. To change it in your game, just select what you want the current setting to be, save the changes, and then either have a Pokemon dream or wake up to transfer that data to the game.
 * Note: Only one of each setting is stored on the game at a time, and can only be changed via this option on the PGL.

=Global Battle Union= You can view your ranking in Random Match battles, among all gamers around the world. You can also see who the top ranked Trainers are.