Nintendo's American website has today removed all traces of certain video game generations. To be precise, there are no longer game listings for Wii, WiiWare, DS and DSiWare. The Wii U information page has also been removed.
It means you'll have to look elsewhere if you're wanting more information about these games from certain generations, such as this lovely website. A post over on Reddit also points out how information about DSiWare games is still available on the 3DS eShop. The DS was originally released in 2004 and the Wii arrived a few years later in 2006.