Re:AggData: Datasets created from scraping the web
by evgen on Thursday September 24, 2009 @12:42PM
(#841532)
It is not just the "artwork" of a map that is protected, or else you would see people turning online map databases into collections of lines and points. The entire collection, as a whole, can be subject to a compilation copyright. This is why mapmakers put in little bits of fake data, so that if their fake data turns up in your map they can nail you for copyright infringement.
Maps have artwork that is protected, and phone books have page layout, font choice, etc. I don't think that textual addresses of a set of facts would be protected, but I think that it's a gray area of law that hasn't been decided.