How to Explain data intergration to a Five-Year-Old

http://milofcmk729.iamarrows.com/15-up-and-coming-data-analysis-bloggers-you-need-to-watch

In registering area names, it is very good point to consider that no one can access and modify the top database of area names and that is now preserved via the InterNIC, other than the domain name registrars.