Free maps

Various Countries
http://mapcenter.cgpsmapper.com/
http://home.wtal.de/noegs/freemaps.htm
Poland
http://www.gpsmaniak.com/
http://ump.waw.pl/

Software for editing vector maps

http://www.geopainting.com/

Map compiler

http://cgpsmapper.com/en/main.htm