As I'm new in the forum, my question is: Is there some special place for posting programming solutions?
Welcome to Mathematica.SE and our Meta site for it (what you are reading now).
Do not mistake these sites for a normal discussion forum as they are not. See the tour for a rundown.
If you have something that you believe will be of general interest it is entirely acceptable, even encouraged, to post a question and answer it yourself. There is even a check-box in the interface to allow you to post both the question and answer at the same time. See this question on our own Meta from the site's early days:
See this FAQ from the main (general) Stack Exchange Meta site: