Philippines relief efforts in the wake of Typhoon Haiyan, known as Yolanda by Filipinos, have been boosted by a "crowdsourcing" initiative with digital helpers from around the world.
Online volunteers have mapped where the worst affected areas are and rated the level of damage on the website, MicroMappers Image Clicker .
The online crowdsourcing organisation, the Standby Volunteer Task Force , has worked with the global humanitarian relief group GISCorps and the database organisation ESRI to create the below map.
Source: Esri