Documentation:
Documentation and translations
http://www.martus.org/downloads/
Client software manuals in a range of languages
 
Step by step guide (ES)
https://secure.privaterra.org/tools/attachment/...
Guia - paso a paso con Martus
 
Martus on Ubuntu
http://privaterra.org/node/85
From Robert Guerra's blog
 

 

 
Useful Links:

 

 
Training:
Product services
http://www.martus.org/products/services_support...
Basic information on trainings, no links provided.