Daniel Romero, a PhD student at Cornell University, has created a list of the 100 most influential news media accounts on Twitter.

Daniel Romero, a PhD student at Cornell University, has created a list of the 100 most influential news media accounts on Twitter.

Romero used a study by HP Lab's Social Computing Lab, which aims to measure influence on Twitter, journalism.co.uk reports.

Here are the top 20:

@mashable
@cnnbrk
@big_picture
@theonion
@time
@breakingnews
@bbcbreaking
@espn
@harvardbiz
@gizmodo
@techcrunch
@wired
@wsj
@smashingmag
@pitchforkmedia
@rollingstone
@whitehouse
@cnn
@peoplemag
@nytimes
@lifehacker
@foxnews
@waitwait
@newsweek
@huffingtonpost
@newscientist
@mental_floss
@theeconomist