I am developing a web based opensource project. I was considering the AGPL v3, but I explicitly want to prevent commercial use. Non-profit orgs are welcome to use it for free.
It seems to be a common thing in the software world, but I am looking for a pre-written license that I could use or adapt.
Any ideas where I can find such a thing? Are there accepted opensource licenses that fit this criteria?
It is not a good idea to use such a license, because it is sometimes very hard to draw the line between commercial and non-commercial, especially juridically.
However, you may check out Creative Commons licenses.