If you are interested to write a post on my blog as a guest author, please contact me! May be you have some interesting stuff to share which you feel would fit to the contents of my blog. Did you build any of my circuits? It would be interesting if you share the experience from your angle. Of course you can also write about other circuits.
Drop me an email if you would want to contribute to my blog. Let me know what you would want to write about and we will work out the details. The article could also be in german if you prefer and I will translate it.