Check Open Data Commons for licensing data, in particular check Open Database License. You might also want to check how and why OpenStreeMap moved from CC to ODBL.
题
The GNU General Public License (GPL) is for software, and the GNU Free Document License (FDL) is for documentation---is there a GNU-like license for data? Specifically, I would like a license that allows the same kinds of permissions that GPL software has (eg, redistribution, access) but for data.
解决方案
不隶属于 StackOverflow