Take a look how they achieved the ranking to the top with title optimization and meta tag optimization
This may be a data from one Data Center might be different from the official busby preferred Data Center for the challenge
of greatest SEO's
Busby Seo Challenge - Backlinks for Indonesia Contestants
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Pinay Speak - Busby SEO Challenge
Main Social Bookmarking sites
sphinn.com
tribe.net
myspace.com
propeller.com
metafilter.com
kirtsy.com
linkedin.com
pownce.com
twitter.com
dnhour.com
hugg.com
memeorlame.com
showhype.com
photographyvoter.com
pixelgroovey.com
plugim.com
smallbusinessbrief.com
videosift.com
23hq.com
gooruze.com
brightkite.com
sclipo.com
seomoz.org/marketplace/resumes
bigsight.org
ozmozr.com
wink.com
ziki.com
ecademy.com
deviantart.com
care2.com
dfinitive.com
adultswim.com
fanpop.com
tweako.com
mixx.com
couchsurfing.com
comagz.com
ballhype.com
buzzflash.net
chipin.com
scoreguru.com
thisnext.com
wishpot.com
stylehive.com
osoyou.com
asoboo.com
mashable.com
change.org