# Sources, paid tiers and claims

Lesson 4 of [Read a Restaurant Listing](https://dishdirectory.com/academy/read-a-restaurant-listing.md), 11 minutes.

A directory gets its data from somewhere. Know where, and know what a paid tier changes. Where the data comes from The site keeps a list of its sources. Each source has a URL, a licence and a refresh schedule. Some listing data comes from OpenStreetMap. OpenStreetMap data is open data under the Open…

The rest of this lesson is for learners enrolled in the course. [See how Read a Restaurant Listing works](https://dishdirectory.com/academy/read-a-restaurant-listing.md).

Also on the [web page](https://dishdirectory.com/academy/read-a-restaurant-listing/sources-tiers-and-claims).