dereenigne.org

Officially, Skype is not supported on 64-bit Debian. In reality, it works perfectly.

If you try to install the official .deb package, dpkg will give you an error:

root@lambda:~# dpkg -i skype-debian_2.1.0.81-1_i386.deb 
dpkg: error processing skype-debian_2.1.0.81-1_i386.deb (--install):
 package architecture (i386) does not match system (amd64)
Errors were encountered while processing:
 skype-debian_2.1.0.81-1_i386.deb

This package works fine if the architecture check is overridden.

wget http://www.skype.com/go/getskype-linux-deb 
root@lambda:~# dpkg -i --force-architecture getskype-linux-deb

** UPDATE

Since this article was written, Skype have released a proper Debian x86_64 package.**