	Sources	Times
1.	telegraph.co.uk	33
2.	dailymail.co.uk	32
3.	abcnews.go.com	30
4.	sciencedaily.com	28
5.	dsc.discovery.com	23
6.	scientificamerican.com	22
7.	msnbc.msn.com	13
8.	news.discovery.com	13
9.	newscientist.com	12
10.	physorg.com	10
11.	life.com	9
12.	news.nationalgeographic.com	9
13.	astroengine.com	6
14.	environmentalgraffiti.com	6
15.	asylum.co.uk	4
16.	boston.com	4
17.	independent.co.uk	4
18.	livescience.com	3
19.	wired.com	3
20.	guardian.co.uk	2
21.	health.howstuffworks.com	2
22.	sciam.com	2
23.	time.com	2
24.	timesonline.co.uk	2
25.	adventure.howstuffworks.com	1
26.	antarctic.fury.com	1
27.	blog.rocketboom.com	1
28.	blogs.discovery.com	1
29.	blogs.nationalgeographic.com	1
30.	businessweek.com	1
31.	ecopolitology.org	1
32.	forbes.com	1
33.	googleblog.blogspot.com	1
34.	history.howstuffworks.com	1
35.	news.cnet.com	1
36.	nwf.org	1
37.	peachygreen.com	1
38.	people.com	1
39.	technologyreview.com	1
40.	techradar.com	1
41.	treehugger.com	1
42.	universetoday.com	1
43.	ynetnews.com	1