Arguably the oldest and largest most successful information management project, ReliefWeb was set up by UN/OCHA in 1997 as a centralised Situation Report database. The idea expanded and it now offers maps and country profiles and jobs, but the idea of information being submitted from the field and being made public immediately is the same.

It is built in Lotus Notes, the predominant framework favoured by the UN at the time.

There are three ReliefWeb offices around the world, enabling the organisation to run 24/7, and unlike many projects in this sector, the project has been subject to major reviews and continuous development.