Just sharing list of 137 active free blog host (most of them on wordpress MU). This can help u get links from lot of diff IPs. ;)

20six.co.uk
21publish.com/landing/community
5ru.com
adadaa.com/
aeonity.com
alexmiller
arsenal.web.id/
atomiknet
autiblogger.com/
azfans.com/
bahraichblogs.com
baywords.com
bestjournal.ru
blog.ca
blog.com
blog.nankoya.net
blog.webmaid.de
blog.wizzhack.co.uk
blogates.com
blogdes.com
blogdetik.com/
blogetery.com
blogframe.com/
bloggear.ru
blogger.com/start
bloggercrab.com
bloggingacademy.com
bloggoing.com/
blogharbor.com
bloghi.com/
bloghost.cl
bloghub.org
blogigo.com
blogitty.com/
blogivists.com/
blogladder.com
bloglegion.com
blog-o-matic.com/
blogomonster.com
blogonize
blogono.com/
blogono.com/wp-create.php
blogpeoria.com
blogpharm.com/
blogr.com
blogrox.com
blogs.24.com
blogs.ie
blogsayfasi.com
blogsome.com
blogsport.de/
blogspress.net
blogsrun
blogster.com
blogtext.org
blogvis.com/
BlogYx.com
blugginout.com
blurty.com
bravenet.com
burhanpur
BusyThumbs.com
clearblogs.com
criticalblogs.com/
cssdev.com
dagdigdug.com
delishio.net
dimosolutions.com
dobrymanager
easyjournal.com/
ebloggy.com
edisplacement
edubuzz.org/blogs
efx2blogs.com
egoweblog.com
etribes.com
everydayweblog.com
expatlives.com/
filmpendek.com
gnau
gotalkaboutit.com/
hadithuna.com/
hh-blogs.de
homeschooljournal.net/
htozna.de/
iblog.net.au
iktib.com/
InsaneJournal.com
invitevt.com/
journalhome.com
journalspace.com
justblogme.com
kitehost.com
laoblogger.com/
livejournal
merdeka.com
multiply.com
my.tabulas.com
my1blog.com/
mydietblogger.com/
myloger.com/
mysolejournal.com/
nhatkydautu.com
nireblog.com/en
noreasontopanic.com/
paintclinic.com
pieceoftexas.com
portal.blogfusion.com
prblogs.org/
realsportsbloggers.com/
rsfblog.org/
rssecho.com
samahilig.com/
seo-blog.org
slyblog.net
something.ie/
soundoffhere
start4all.com/
subliminalfuture.com/
testdrivewpmu.com/
theblogs.net
thewatchtowerpodcast.com/
thoughts.com
thunderlounge.com/
today.com
uniblogger.com
wanderingeducators.com/
warnetnews.com/
wordpress.com
wordpress.pk
worldenergyblogs.com
worldkayakblogs.com/
worldwomenblog.com
wpmu.net/
xblogspot.com/
yourblog.in/
zoomshare.com