The European electronic manuals we have so far:
- Donkey Kong Country Returns: http://m1.nintendo.net/docvc/RVL/EUR/SF8P/SF8P_E.pdf
- Kirby's Adventure Wii: http://m1.nintendo.net/docvc/RVL/EUR/SUKP/SUKP_E.pdf
- Metroid Prime Trilogy: http://m1.nintendo.net/docvc/RVL/EUR/R3MP/R3MP_E.pdf
- Punch-Out!!: http://m1.nintendo.net/docvc/RVL/EUR/R7PP/R7PP_E.pdf
- Super Mario Galaxy 2: http://m1.nintendo.net/docvc/RVL/EUR/SB4P/SB4P_E.pdf
Comming soon:
- Pandora's Tower: http://m1.nintendo.net/docvc/RVL/EUR/SX3P/SX3P_E.pdf
- Sin & Punishment - Successor of the Skies: http://m1.nintendo.net/docvc/RVL/EUR/R2VP/R2VP_E.pdf
And here all the manuals Japan currently has:
- Donkey Kong Country Returns: http://m1.nintendo.net/docvc/RVL/JPN/SF8J/SF8J_J.pdf
- Kirby's Adventure Wii: http://m1.nintendo.net/docvc/RVL/JPN/SUKJ/SUKJ_J.pdf
- Pandora's Tower: http://m1.nintendo.net/docvc/RVL/JPN/SX3J/SX3J_J.pdf
- Sin & Punishment - Star Successor: http://m1.nintendo.net/docvc/RVL/JPN/R2VJ/R2VJ_J.pdf
- Super Mario Galaxy 2: http://m1.nintendo.net/docvc/RVL/JPN/SB4J/SB4J_J.pdf
- Zangeki no Reginleiv: http://m1.nintendo.net/docvc/RVL/JPN/RZNJ/RZNJ_J.pdf
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Original post:
I got my first digital Wii title today with MPT, and noticed that the game went to an url when I clicked on the manual,
and low a behold it opens the browser to the following address:
http://m1.nintendo.net/docvc/RVL/EUR/R3MP/R3MP_S.pdf (spanish version)
If you change the S to E it takes ya to the english manual:
http://m1.nintendo.net/docvc/RVL/EUR/R3MP/R3MP_E.pdf
Here's a crapy pic capturing the URL 
Note sure if /RVL/EUR/R3MP/ means anything, the naming reminds me of the savefile folders the Wii used.
Maybe someone can browse the website for other titles xD
Still it's weird the manuals aren't packaged with the game, but instead they are linked online.
As with anything online, those pdfs will not be there forever.
