A (biased) summary of some licenses:
- GPL
- My language is so unique and powerful that only open-source programmers should be able to use it.
- My language is complete enough that you won't need proprietary programs.
- Beg and plead with me, and I might give you a better license
I will eat your children!- LGPL
- You can use my language, but don't expect support unless you're contributing.
- yadda yadda yadda
- BSD
- I don't care what you do
- This project doesn't do much...
- etc.
- WTFPL
- I don't care what you do.
- Do it.
- CC-BY-SA
- What? Some weird person...
- My software, use it if you want
- CC0
- free stuff!