To find out what the United Nations is up to in Darfur, check the UNMIS (U.N. Mission in Sudan) website. It includes updates on U.N. support for the African Union peacekeeping mission.

For a contact list of aid agencies active in the region see AlertNet's Who Works Where page for Darfur.

Check out the Sudan website of the U.N. Office for the Coordination of Humanitarian Affairs for maps and information on aid operations, as well as the U.N. Sudan Information Gateway.

Think-tank International Crisis Group has a useful Crisis in Darfur section with background, analysis and information on the humanitarian situation.

Washington has described what is happening in Darfur as genocide. But in 2005 the United Nations concluded that genocide had not taken place in Darfur. Instead, a commission report found Khartoum and the Janjaweed guilty of "widespread and systematic" abuse that could constitute crimes against humanity.

The International Criminal Court (ICC) is pursuing Sudan's president and others for war crimes in Darfur. Its website has documents and press releases.

One of the best no-holds-barred blogs on Sudan is written by Eric Reeves, a Professor of English Language and Literature at Smith College in Northampton, Massachusetts.

For information on people displaced within Darfur and refugees sheltering along the Sudan/Chad border, the best place to start is the U.N. refugee agency website.

For reports from the field, have a look at U.S.-based advocacy group Refugees International. For information on how the conflict has spilled over into Chad have a look at this 2007 report by Amnesty International - Civilians under attack: Darfur conflict spreads to eastern Chad

What can individuals do about the violence in Darfur? Human Rights Watch offers some suggestions, from donating to aid agencies to writing letters to the rebel leaders. HRW also has in-depth reports.

The Save Darfur Coalition is an alliance of mainly U.S.-based organisations campaigning for greater international effort to end the Darfur crisis.

The International Committee of the Red Cross has a film on the Darfur conflict which you can watch or order online.

The Feinstein International Center at Tufts University has published a number of reports on Darfur and the effect of the conflict on livelihoods.

Here are a few more links if you want more information and analysis on the fallout from the ICC decision to issue an arrest warrant for Bashir.

• AlertNet's coverage of ICC warrant and aid agency expulsions
• Sudan, the ICC and genocide - analysis by Marting Shaw on Open Deomcracy.
• To put justice before peace spells disaster for Sudan - Julie Flint and Alex de Waal in the Guardian