==== Linux Operating Systems ====
  * SUSE
    * [[http://www.fzk.de/fzk/idcplg?IdcService=FZK&node=2615&document=ID_053070|(SUSE) Software server at FZK]]
    * [[http://de.opensuse.org/Willkommen_auf_openSUSE.org|OpenSUSE]]
    * [[http://opensuse-community.org/Welcome_to_openSUSE-Community.org|OpenSUSE community]]
    * [[http://www.unixboard.de/vb3/forumdisplay.php?f=9|OpenSUSE forum]]
  * Ubuntu (Kubuntu)
    * [[http://www.kubuntu.org/|Kubuntu]]
    * [[http://www.ubuntu.com/|Ubuntu]]
    * [[http://ubuntuusers.de/|Ubuntu German forum]]

==== Virtualization ====
  * [[http://www.virtualbox.org/|VirtualBox]]
  * [[http://www.vmware.com/|VMWare]]

==== Java ====
  * Databases
    * [[http://www.hibernate.org/|Hibernate]]: Java class persistence framework (used in JRodos)
    * [[http://hsqldb.org/|HSQLDB]]: a pure Java data base
  * [[http://www.jscience.org/|JScience]]: an advanced scientific library for Java (used in RodosLight and JRodos)
  * [[http://retroweaver.sourceforge.net/|Retroweaver]]: using Java 5 and 6 with Java 1.4
  * [[http://www.opensymphony.com/quartz/|Quartz]]: a Java job scheduler and timing framework
  * [[http://reporting.pentaho.org/|Reporting framework]]: create reports (used in JRodos)
  * [[https://jna.dev.java.net/|JNA - Java Native Access]]: using shared libraries directly in Java (used in JRodos)

==== Fortran ====
  * [[http://www.g95.org/|G95]] a free Fortran compiler

==== Miscellaneous ====
  * [[http://www.sysresccd.org/Main_Page|System Rescue CD]]: Cloning systems and drives
  * Slipstreaming - creating WindowsXP + SP2 + Hotfixes + Driver + ... into new bootable image
    * [[http://www.nliteos.com/|nLite]]
    * [[http://www.german-nlite.de/|nLite German pages]]
  * [[http://www.cygwin.com/|Cygwin]]: Linux environment for Windows