[M4v3R]

Go with BSD if you want people to do something with it. Unless you don't want for people to make closed source apps with it, then go with GPL.

[jckay]

Post Updated to reflect http://en.wikipedia.org/wiki/BSD_licenses

Thanks for pointing this out guys. JK

[vog]

Note that there are 2 common variants of the BSD license: "2-clause" and "3-clause". Don't forget to specify which one you mean.

I'm using the ISC license (https://en.wikipedia.org/wiki/ISC_license) which is equivalent to the 2-clause BSD, but does so with fewer and simpler words.

Also, the MIT license (https://en.wikipedia.org/wiki/MIT_license) is quite popular. It is also equivalent to the 2-clause BSD, but not quite as short as the more modern ISC license.