Where can I find useful item lists (SQL, or plain text) like sports, hobbies, and others?

Question

GeoNames public geographic locations index is a very useful website that I have used to import a list of countries and cities into my web app.

Now, are there any other public databases that would provide various useful lists? (Other than Wikipedia) I am looking for a list of sports, hobbies and similar items.

Answer 1

US zip code web service: http://www.webservicex.net/uszip.asmx This has a list of web services you can access: http://www.wsindex.org/

Answer 2

There is something called Google Sets that might be able to help you. But this is controlled by people, and not necessarily moderated or controlled.