I don't want to spoil the fun too much, but if you are subject to EU law (and don't ask me whether that depends on whether the data is European or on whether you are in Europe; I am not a lawyer) you cannot simply grab data of the net on the theory that raw data is not a creative work and thus not copyrighted. Just in case anybody gets it into their head to do innovative things with web-accessible databases of facts, Brussels has given us the wonders of the EU Database Directive, which makes raw data copyrightable. Phone books, registries of commerce, postal code databases, train timetables, and other such things that cannot be copyrighted in the US do fall under a copyright-like _sui generis_ IP regime in the EU.<p>Not that there isn't a case for sometimes just ignoring the fancy details of the law and going with "do first, ask permission later."<p>But I thought maybe you should know.