New Multi-Lingual website link developement

Hello.
I've been developing a new, fresh website called FileChange.net (awesome file conversation tool).
I have created this website multi-lingual, each language in different sub-domain.
For example:
http://de.filechange.net – German Version
http://es.filechange.net – Spanish Version
http://he.filechange.net – Hebrew Version
And ofcourse the English International version, http://www.filechange.net.
I need your help with link developement on this project, How I should do this smart and…
New Multi-Lingual website link developement

See original post by theunreal