Flash Content:

www.albinoblacksheep.com/games/wii/
www.homestarrunner.com/
www.ferryhalim.com/orisinal/
www.wiiarcade.com/
www.wiicade.com/home.aspx
www.wiiplayable.com/

Non - Flash Content:

wii.yippy.com/ Wii Optimized search engine.
wapreview.mobi/dir/ - excellent starting point for wii browsing
mobile.theverge.com/ - where technology, design and culture meet, or something.
m.ign.com
m.wired.com
m.mentalfloss.com
codebook.potchgult.com/ Davids Nintendo Code Book
finetune.com/wii Internet Radio
GBAtemp Wii Discussion
https://sites.google.com/site/wiiflowiki4/
en.m.wikipedia.org/wiki/Main_Page

Metacritic Wii Games by metascore:
www.metacritic.com/browse/games/release-date/available/wii/metascore?hardware=all&view=condensed
This thread :)

Social Networking mobile sites(Full Covers):

m.facebook.com/
m.flickr.com/#/home
mobile.twitter.com/i/guest

News & Weather Pack 

foreca.mobi/old/
www.theguardian.com/
m.aljazeera.com/index/home
m.bbc.co.uk/weather
www.factcheck.org/
m.truthdig.com/
m.cnn.com/
www.thedailybeast.com/
m.huffpost.com/

VERSION 3 19/12/13 ADDED:
m.reddit.com
slashdot.org
m.gamefaqs.com/wii
m.wolframalpha.com
mail.live.com/m
m.gmail.com