Good topographic map of Colorado
Cloudmade's OSM maps of Yemen for OSM improvement
OpenMTBmap of Croatia
General map of Lithuania based on OSM data by Computerteddy
Computerteddy's standard OSM map of Mauritania
Here you can download a .rar archive with topographic and routable maps from Laos and Vietnam. The licence is unknown! We do not take any responability for this link!