com
digg.com1
www.newsvine.com1
www.stumbleupon.com1
www.facebook.com1
feeds.feedburner.com1
technorati.com1
www.badastronomy.com1
www.newscientist.com1
www.universetoday.com1
blog.wired.com1
www.sciencedaily.com1
www.nationalgeographic.com1
www.nytimes.com1
adwords.google.com1
www.flickr.com1
www.msn.com1
mail.live.com1
www.jokeroo.com1
www.youtube.com1
www.reuters.com1
abcnews.go.com1
video.foxnews.com1
news.discovery.com1
g.live.com1
go.microsoft.com1
g.msn.com1
advertising.microsoft.com1
onlinehelp.microsoft.com1
upload.youtube.com1
www.google.com1
www.adobe.com1
help.youtube.com1
code.google.com1
www.time.com1
techland.com1
healthland.time.com1
twitter.com1
add.my.yahoo.com1
fusion.google.com1
www.netvibes.com1
feeds.my.aol.com1
www.technorati.com1
reddit.com1
www.mixx.com1
www.typepad.com1
www.livejournal.com1
www.blogger.com1
www.myspace.com1
holykaw.alltop.com1
www.aolnews.com1
www.huffingtonpost.com1
www.walletpop.com1
search.twitter.com1
ebm.cheetahmail.com1
www.timeforkids.com1
www.life.com1
subscription.time.com1
www.timemediakit.com1
www.timeopinionleaders.com1
vip.wordpress.com1
net
www.sundaymercury.net1
cgi.timeinc.net1
time.timedigital.adportal.net1

org
sciencenow.sciencemag.org1
www.sciencenews.org1
www.eurekalert.org1

uk
www.guardian.co.uk1
www.theregister.co.uk1

us
del.icio.us1

gov
www.nasa.gov1

int
www.esa.int1

Top Level Domains for External Links
com60
net3
org3
uk2
us1
gov1
int1