As planned, Nintendo is today discontinuing several of the outgoing Wii's online services. The discontinued services will render the following Wii home menu 'Channels' obsolete:
Nintendo Channel
News Channel
Forecast Channel
Everybody Votes Channel
Mii Contest Channel
Data exchange with Wii Friends
The Data Exchange with Friends closure will affect the "exchange of Wii messages on the Wii Message Board, exchange of Mii characters on the Mii Channel and message/data exchange within some games will be disabled".
This comes seven months after the launch of the Wii's successor, Wii U, in November 2012.
The Wii U Shop channel will remain online for the forceable future, and can be accessed directly via the Wii U system while in its backwards-compatible Wii mode.
Nintendo said within its original announcement, "We at Nintendo sincerely thank you for your continued patronage of our company's products. We apologise to those of you currently using these services."