For an overview on the conflict and the military crackdown in 2003, read the Human Rights Watch report Aceh Under Martial Law: Inside the Secret War. This is based on interviews with Acehnese refugees and details allegations of extrajudicial killings, abductions, arbitrary detentions and forced displacement.

For more recent post-tsunami reports, see Human Rights Watch's Aceh section.

Another good place for general information is the Internal Displacement Monitoring Centre, which has a wealth of well-sourced background on the conflict and how it has uprooted communities. It also carries links to a number of useful external reports.

In its overview Aceh: So Far, So Good, the International Crisis Group says the peace process is working beyond all expectations. The December 2005 report outlines the speedy progress to date and potential bumps in the road ahead.

An earlier ICG report Aceh: A New Chance for Peace was written at the time of the signing of the peace agreement.

The website for the U.N. Office of the Special Envoy for Tsunami Recovery has been closed, but you can still find related articles on the tsunami and Aceh on ReliefWeb.

The Worldwatch Institute has a handy timeline which explains some of the historic reasons behind the campaign for independence. There's also a useful feature Aceh: Peacemaking after the tsunami.

This article by human rights organisation Global Exchange explains how the tsunami focused international attention on the Aceh conflict and describes how the aid effort has brought inflation to the region, further impoverishing many survivors.

The former rebel movement GAM, also known as the Acheh/Sumatra National Liberation Front, has a professional-looking website which outlines its aims and has background to the crisis, the peace talks and its progress.

The Aceh Monitoring Mission carries news on the progress of the peace process and brief background information on weapons handovers, troop pullbacks, prisoner amnesties and the reintegration of former rebel fighters.