Politics/action
Barack Obama
This account is run by #Obama2012 campaign staff. Tweets from the President are signed -bo.16,191,922 followers | Follow
The White House
Official WH twitter account. Comments & messages received through official WH pages are subject to the PRA and may be archived. Learn more http://wh.gov/privacy2,901,830 followers | Follow
UK Prime Minister
The official twitter channel for Prime Minister David Cameron's office, based at 10 Downing Street. Twitter policy: http://www.number10.gov.uk/number10online/2,002,933 followers | Follow
Boris Johnson
310,661 followers | Follow
Change.org
Change.org is the world’s fastest growing platform for social change, empowering millions to start and join campaigns for social change in their communities.299,622 followers | Follow
UN Secretary-General
UNOFFICIAL TWITTER - daily schedule of Ban Ki-moon, Republic of Korea, 8th Secretary-General. Official accounts at @UN and @UN_Spokesperson.188,446 followers | Follow
Architecture for...
Architecture for Humanity brings design, construction, and development services to communities in need.145,324 followers | Follow
Live Earth
Leveraging the power of entertainment through integrated events, media and live experience. Join the global movement to help solve critical environmental issues95,490 followers | Follow
Nick Clegg
Official Tweets from the Deputy Prime Minister & Leader of the @libdems.84,218 followers | Follow
Amnesty UK
We are a movement of ordinary people standing up for human rights wherever justice, freedom, fairness and truth are denied.51,499 followers | Follow
HM Treasury
The official Twitter channel of HM Treasury, updated by the Treasury communications team. Watch our latest videos on YouTube http://www.youtube.com/hmtreasuryuk43,116 followers | Follow
Liberal Democrats
British political party in government working to make the UK fairer for all. Led by Deputy Prime Minister @Nick_Clegg.33,029 followers | Follow
Harriet Harman
MP Camberwell and Peckham, Labour deputy leader, shadow culture secretary30,055 followers | Follow
Jennifer Granholm
Fmr Gov of Michigan, Faculty @UCBerkeley, Co-author of A Governor's Story, Host of @GranholmTWR on @Current TV. Views here are my own. RTs are not endorsements.28,638 followers | Follow
MirHossein Mousavi
MirHossein Mousavi is standing for election in the upcoming Iranian Presidential election 2009. With Khatami, Vote Mousavi.24,403 followers | Follow
Peter Tatchell
For human rights, democracy, global justice & LGBTI freedom. Views expressed here are my own & may not reflect those of the Peter Tatchell Foundation.22,996 followers | Follow
RayBeckerman
Law, social justice, nature, human & animal rights, the arts, ecology. Progressive. I try to lend my voice to the voiceless. http://is.gd/cNFKN22,441 followers | Follow
Allyson Kapin
Founder of Women Who Tech: A Telesummit for Women in Tech in the non-profit and political campaign world. And Founder of Rad Campaign http://www.RadCampaign.com21,876 followers | Follow
1 Thing For Green
Every day we're doing one thing to be green. We want to show if each person does one small thing it can make a difference. Make sure to join our facebook cause!19,309 followers | Follow
Spotlight on Poverty
Daily Poverty News and Commentaries From Spotlight on Poverty and Opportunity15,394 followers | Follow
Sadiq Khan MP
Member of Parliament for Tooting, Shadow Justice Secretary & Shadow Lord Chancellor14,801 followers | Follow
European Voice
Published by The Economist Group since 1995, European Voice is the only weekly newspaper and daily website with an independent view of the EU.13,842 followers | Follow
Unite the union
The UK and Ireland's largest trade union. Join at: http://www.unitetheunion.org/join12,046 followers | Follow
Adam Smith Institute
The Adam Smith Institute is the UK’s leading libertarian think tank. It engineers policies to create a freer, more prosperous society.10,521 followers | Follow
ServiceNation
A campaign to inspire a new era of voluntary citizen service in America, by Be The Change, Inc. Sister campaign of @OppNation.10,404 followers | Follow
Ethical Corporation
CSR, Sustainability and Responsible Business analysis, opinion, news, business intelligence and events. Liam Dowd & Toby Webb tweeting9,609 followers | Follow
Climate Camp
Currently in a state of flux. We won't be holding a Climate Camp this year, but we will continue to keep you informed of grassroots environmental direct action.7,714 followers | Follow
Alanna Shaikh
International development optimist & skeptic, global health & int'l dev blogger at Blood & Milk, UN Dispatch. TED fellow. All tweets my opinion not employer's.7,471 followers | Follow
World Bicycle Relief
Providing access to independence and livelihood through The Power of Bicycles.7,206 followers | Follow
Ubuntu Now
Increasing human interconnectivity by curbing violence through rape prevention programs, supporting the healing of rape victims and promoting gender equality.7,027 followers | Follow
Blog Action Day 2010
Asking the world to blog about water on October 15, 2010. Register at http://blogactionday.change.org.6,571 followers | Follow
S and D Group
The S&D Group campaigns for social justice, a smarter economy, financial reforms, fighting climate change, championing equality & creating a strong Europe.5,709 followers | Follow
Norman Lamb
4,327 followers | Follow
ClimaTweets
Pulling together the best Climate blogs on the planet. Email to be added.3,978 followers | Follow
World Concern
World Concern is a Christian global relief and development agency extending opportunity and hope to people facing extreme poverty in Asia, Africa, and Haiti.3,975 followers | Follow
Alia Papageorgiou
Politics | Journalist | Curator @PdF_Europe Brussels 2012 | Editing | EIT | EU Law | Greek/Australian Brusselite Creating Social Media @GoldsmithsUoL @macsm_UK3,786 followers | Follow
Paul Harfleet
I am an Artist and The Pansy Project is an ongoing artwork; I plant Pansies at the site of Homophobic Abuse on the Streets!3,686 followers | Follow
Global Agents
Dedicated to the possibility of a world where no one lives in poverty. Catalyzing some of the best ideas of our generation @Global_CI @Edgen @RTBTC2,807 followers | Follow
Diana Kuan
Writing and photographing a cookbook, out from Random House/Ballantine in Dec 2012. (Title forthcoming) At http://brooklyngalley.com and2,197 followers | Follow
Economic Voice
2,073 followers | Follow
Aid to Sierra Leone
Providing the orphaned and destitute children of Sierra Leone with a loving home, education, medical care, and hope. YOU have the power to make a difference!1,844 followers | Follow
publicservice.co.uk
We provide news, features, publications and events looking at public sector issues1,694 followers | Follow
Liberal Lucy
Lefty political blogger (MichiganLiberal.com), online activist1,088 followers | Follow
PolicyConnect
Non-profit, we bring sectors & policy makers together to share & mutually inform889 followers | Follow
Ajax Van Eyndhoven
Combating unadulterated corporate greed and ignorant world views.670 followers | Follow
Neena Gill
482 followers | Follow
INA KUKOVIC
Optimist, thinker and doer. Understanding differences. Love nature, people and simple things.303 followers | Follow
Annelize Bester
Photographer, Filmmaker, Traveler in support of Sustainable, Co-Ordinated and Inclusive Human Development. (http://annelizebester.com & http://thuto.us)229 followers | Follow
Harald Haraldsson
208 followers | Follow
