Grouper
Revver
Veoh
Break
Digg
Entensity
Google Video
Heavy
Leenks
LiveLeak
MetaCafe
Photobucket
StupidVideos
YouTube
Viddler
Slideshare — a variation on the theme
Podshow (allows larger than normal uploads)

Recently added, but not verified. Some duplicates have been removed, but not all:

Putfile
angryalien
animeepisodes Pirated material
badjojo
blastro
blennus
blip
bofunk
bolt
castpost
collegehumor
current
dachix
danerd
dailysixer
dailymotion
devilducky
doubleagent
evideoshare
evtv1
findvideos
freevideoblog
grinvi
grouper
hiphopdeal
kontraband
lulu
midis
nothingtoxic
sharkle
streetfire
thatvideosite
theonenetwork
vidilife
vidnet
vimeo
vsocial
web62
yikers
zippyvideos
eyevio (Japanese, from Sony)
motionbox
apnatube from India
blinkx Video Search Engine.
tudou (Japanese)
pickle
videoegg
natelki (Hungary?)
allaboutvids
guba
livevideo
stage6 (Requires DIVX to be installed)
ameba Japanese
citybity
clipcast Japanese
cliplife Japanese
jimaku Japanese
kewego French
raorao Japanese
56 Chinese

Some Korean sites:

naver
daum
pandora.tv
beedeo
diodeo
mncast
aura.damoim
damoim