Open Content License
http://opencontent.org/opl.shtml

Open Software
http://www.gnu.org/

MIT Open Course Ware
http://ocw.mit.edu/index.html

Blender, free open source 3D program
http://www.blender3d.com/

Wikipedia, the free encyclopedia
http://en.wikipedia.org/

P-Funk
http://www.duke.edu/~tmc/motherpage/pfaq.html

Cash converter
http://www.xe.com/ucc/

English – German dictionary
http://dict.leo.org/

German dictionary
http://www.dwb.uni-trier.de/index.html

Cars
http://www.mobility.ch/

Building parts
http://www.bauteilclick.ch