It depends on what you want. Do you want people to just do whatever they want, then go with MIT or a BSD license. If you want people to contribute back (and 'ke

It depends on what you want. Do you want people to just do whatever they want, then go with MIT or a BSD license. If you want people to contribute back (and 'keep on giving') use one of the GPL licences. Personally I always use MIT. It's no harm to go over your code again and clean it here and there (not having seen the code, just in general ;) Regarding documentation: If you want people to do stuff with your code, providing documentation is very helpful. Writing documentation is a boring task, so most open-source projects conveniently forget to do so. If you have a well documented source even, it's much, much more useful to others.