Streetmap-This street map includes highway-level data for the world and street-level data for the United States, Canada, Japan, southern Africa, and a number of countries in Europe and elsewhere.
Satellite Imagery-This map presents satellite imagery for the world and high-resolution (1m or better) imagery for the United States, Great Britain, and other areas around the world.
Topographic Map-This map includes administrative boundaries, cities, water features, physiographic features, parks, landmarks, highways, roads, railways, airports, and buildings overlaid on land cover and shaded relief imagery for added context.
Open Street Map (OSM)-OpenStreetMap is a free editable street map of the whole world. OpenStreetMap allows you to view, edit and use geographical data in a collaborative way from anywhere around the world.
Conflict/At Risk Areas: Conflict and At Risk Areas in the Horn of Africa are provided by FEWS (Famine Early Warning System) and define countries that are in high risk of famine and are potentially experiencing conflict thereby limiting NGO and aid access.
Population density: Population Density for Africa in 2000 (Fourth Edition) published 2004-10-06 by UNEP/GRID Sioux Falls, SD, USA and made available on ArcGIS.com by Andy Nelson, University of Leeds (Nelson, Andy, 2004. African Population Database Documentation, UNEP GRID Sioux Falls. Retrieved 1/27/2011 from UNEP/GRID Sioux Falls.) Data has a spatial resolution of 2.5 km.
NGOs: bettermap.org: The Bettermap project aims to provide an geographical overview of global NGO activities by gradually mapping NGO facilities and the connected infrastructure around the globe. The Bettermap Project is built upon the Ushahidi platform and is added to this map by pulling the data directly from the bettermaps.org Ushahidi instance. The Ushahidi Platform allows anyone to gather distributed data via SMS, e-mail or web and visualize it on a map or timeline. The feed aggregates information from the public for use in crisis response.