Wack-a-mole

rapidshare.com
megaupload.com
mediafire.com
4shared.com
hotfile.com
badongo.com
bitroad.net
bitshare.com
box.net
crocko.com
depositfiles.com
diglo.com
dump.ru
easy-share.com
enterupload.com
esnips.com
extabit.com
fileden.com
filedino.com
filedropper.com
filefactory.com
filejungle.com
filepost.com
fileserve.com
fileshare.ro
filesonic.com
flameupload.com
freakshare.net
furk.net
getdropbox.com
gigasize.com
goldfile.eu
hellshare
hitfile.net
hotshare.net
ifile.it
kickload.com
letitbit.net
megashares.com
multiupload.com
netload.in
oron.com
przeklej.pl
putlocker.com
sendmyway.com
sendspace.com
shareflare.net
share-online.biz
sharingmatrix.com
speedyshare.com
turbobit.net
turboupload.com
ugotfile.com
ul.to
uploadbox.com
uploaded.to
uploadhere.com
uploading.com
uploadking.com
uploadstation.com
usaupload.net
vip-file.com
wupload.com
x7.to
yourfilehost.com
yousendit.com
ziddu.com
zippyshare.com
zshare.net
2shared.com
4fastfile.com

Except that several are voluntarily censoring themselves.