so geil:

aptitude show vrms
Package: vrms
New: yes
State: installed
Version: 1.16
Priority: optional
Section: admin
[...]
Description: virtual Richard M. Stallman
The vrms program will analyze the set of
currently-installed packages on a Debian-based system, and report all of the packages from
the non-free and contrib trees which are currently installed.
In some cases, the opinions of Richard M. Stallman
and the Debian project have diverged since this
program was originally written. In such cases, this program follows the Debian Free Software Guidelines.
Note that vrms is not limited to Debian systems only
(which means that it also works with Debian-derived distributions such as Ubuntu). It is also not limited to Linux-based systems.
Future versions of vrms may include an option to also
display text from the public writings of RMS and others that explain why use of each of the installed non-free packages might cause moral issues for some in the Free Software community. This functionality is not yet included.
Homepage: http://vrms.alioth.debian.org/