Creative Commons License

I just added a Creative Commons License to this blog.
I believe in free content (and this is free content) and I believe in copyright. What I don't believe in is the way copyright, patents and trademarks are often being used.
The aim of all three mechanisms is to foster innovation, to incentivise people to put their creativity into use. Unfortunately, these mechanisms are often being used to do exactly the opposite: suffocate creativity and innovation.
It is there that creative commons enters the picture and hopefully changes the way people think about copyright.

The symbols above tell you that it is ok to use the content found here and even change it. Provided you follow some conditions:

• Attribution.
  You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
  
  
• Noncommercial.
  You may not use this work for commercial purposes.
  
  
• Share Alike.
  If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one

• For any reuse or distribution, you must make clear to others the license terms of this work. The best way to do this is with a link to this web page.
• Any of the above conditions can be waived if you get permission from the copyright holder. Nothing in this license impairs or restricts the author's moral rights.

The definitions above I have taken from this page:
http://creativecommons.org/licenses/by-nc-sa/2.0/de/deed.en