Q: What's the difference between a free site and a gallery? I mean, they're both free, right?

A: A gallery is free to access, as is a free site. The main difference is that a gallery is one page and a free site is a compilation of many individual HTML pages. A single page is not a site. Sure, you may have links on your gallery page to the rest of your site, but that one page is not a whole website. For your web to be considered a whole site, you need a collection of linked pages on the same domain.