Secondly, you "Share Alike". If you publicly distribute something that you have made from our data, such as a map or another database, and you have added to or enhanced our data, then we want you to make those additions publicly available. We obviously prefer it if you added the data straight back to our database, but you do not have to, as long as the public can easily get a copy of what you have done. If you do not publicly distribute anything, then you do not have to share anything.
Our current license is called
We are currently changing the license, [[License/About The License Change|read more about it here]]. If fully accepted by our community, data will be re-licensed under the [http://www.opendatacommons.org/ OpenDataCommons] [http://www.opendatacommons.org/licenses/odbl/ Open Database License (ODbL)].